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Comment book archive: 2007

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I have really enjoyed your explanations of elctricity, and have really learned alot. thank you. I am wandering if you could explain in detail the working components of an electronics circuit the way you did wit the transitor. Explaining the importance of amps, volts and ohms. Also I to have the "Babylonian" way of going about thing and have more than a desire to understand things in FULL detail and why it happens. So if you have any explanations of anything else that dont necessarily have anything to do with electricity I would be happy to here your ideas.

Thank You, Alex

alex <alexander_harrell asng yahoo dt com >
wilson, nc USA - Monday, December 31, 2007 at 14:59:17 (PST)


I have a washer Dryer, that works on 220 volts power supply. Would it have used less power, if it was a 110 volts machine?
Inder Sharmna <inderuma asng hotmail dt com >
Daly city, ca USA - Sunday, December 30, 2007 at 01:24:11 (PST)
My textbook says that electrical currents in metals are caused by electrons being excited into higher molecular orbitals by the electrical potential created by a source, and they therefore have more energy to move around and conduct the charge. I understand the electron sea model (free electrons floating around the crystal lattice of the protons/neutrons) but I'm just wondering if this is true and if it could be explained better because I've always thought that electrons flow like water through a pipe.
Karl <kkuppers/\gmail=+com>
Canada - Friday, December 28, 2007 at 01:40:30 (PST)
What are the benefits, if any, of operrating a 3 ph. motor through astep up transformer? Prime; 208 . Sec; 480.
Motor is high/low capable.

M. D'Garcia <tesla1732 asng yahoo.com>
las vegas, nv USA - Wednesday, December 19, 2007 at 12:35:10 (PST)
I am installing Five 400 watt lamps in one room. 3 lamps on one timer and the other 2 on another timer. AT times all five will be on at the same time. The Electric current here is 220 V 50 Hertz. One question is what amperage will these five lamps produce ? Considering all 5 will be on at the same time .......
Another is what electricity cable do you recommend for this project, considering I will be using 3 lamps on one part of the room connected to a timer and the other 2 at another part of the room connected to diferent timer. Any specific way I should be cabling this that you might recommend.... ? Thank you.

Paul Frascarelli <paulfrascarelli asng hotmail dt com >
Buenos Aires, BsAs Argentina - Monday, December 17, 2007 at 19:45:27 (PST)
how can you determine weather a a string of lights is wired in a series or parallel?
brooke
USA - Sunday, December 09, 2007 at 16:09:22 (PST)
How can fire create electricity? I am told it can't but I am sure it plays in creating energy/electricity.
Arthur <arthurrtimmins asng yahoo dt com SECURITY>
Weed, CA USA - Sunday, December 02, 2007 at 22:07:14 (PST)
a conductor perpendicular to a magnetic flux moves at right angle to the flux an induced current will be there perpendicular to the flux and motion
We use flemings RHR (Right hand rule) to determine I,B,F

But what if a magnet is moved inside the solenoid
the M.flux will be parallel to the movement of the magnet

Q:how can we apply fleming's RHR to a magnet moving inside a solenoid ?

Furat <scudmissile47 asng hotmail dt com >
USA - Wednesday, November 28, 2007 at 10:25:39 (PST)
in switch why we use the standrd format like in three pin plug
upper pin is --- eathing and left side ---- neutral and right side ----positive or live
plz send me answer

ravindra <ravindra_kesare asng hotmail.com>
pune, maharashtra ind - Friday, November 16, 2007 at 23:28:32 (PST)
1 - describe kinds of electric charges ?
2 - define electricity ?
3 - differentiate between static and current electricity?
4 - describe an electric circuit and how it works ?

sayed desoukey <sdesoukey>
dubai, uae - Tuesday, November 13, 2007 at 06:58:29 (PST)
I was just wondering, how is it that a 12V car battery can do serious damage if it takes 40V to be considered a "dangerous voltage"? Love this site, so helpful. ;)
Daniel Croft <kaisercrofty asng gmail dt com >
NY USA - Sunday, November 11, 2007 at 20:06:14 (PST)
what is the difference between cycle and frequency
Dan <golfer asng unitz.ca>
Sudbury, USA - Thursday, November 08, 2007 at 12:01:32 (PST)
I was wondering what the difference is between a series and parallel circuit is?

kate <soccer711_k15320 asng hotmail dt com >
oxford, ns canada - Monday, November 05, 2007 at 09:35:53 (PST)
I have added 4 recessed lights to my kitchen. When I turn on the first light switch, there is static on my radio. It only happens with the first light switch and it happens on every outlet I plug my radio into. Why???
Tim Cotter <Talcot123 asng aol dt com >
Wakefield, Ma USA - Thursday, November 01, 2007 at 08:37:00 (PDT)
Hi, got a question for you guys. I bought a small motor of e-bay, problem is that it uses american power. Ive got the details but im not sure what type of transformer ill need.

120 volt
4 watt
0.03 amp
4 Va

Cheers

Quintus Slobe

Quintus Slobe <quintus_slobe asng hotmail dt com >
Perth, WA Australia - Tuesday, October 30, 2007 at 17:57:34 (PDT)
My Question is this-

We get AC supply to our houses, So for the first half cycle the current should from thro
the live wire to the load and then return thro neutral, Now for the 2nd half cycle this
must be reveresed, That is Neutral-load-Phase. This is wat is Alternating current.
But I closed the switch, inserted the tester in the live terminal and it glowed, jus as
expected,then i inserted the tester into the neutral and it didn't glow.How's that?
Now if the neutral wire acts only as the return wire and v get current only thro the
phase terminal from the generating stations how can v cal that as alternating current, becaus
the current is uni-directional.

Anand <anand_88_07 asng yahoo dt com >
Chennai, TN India - Tuesday, October 30, 2007 at 05:47:47 (PDT)
how does electricity work well i was really wanting to know it is relly intresting and fascenating so if you could email me back thank you and have a nice day!!!!!!!!!
shawnda <iloveme_ asng 2014@hotmail dt com utysa>
ca USA - Monday, October 29, 2007 at 18:14:05 (PDT)
Hi, We just moved to Hong Kong from the U.S. and we are using a few transformers in our apartment to convert our computer and some floor lamps. Do you know how dangerous they are to our health? The one for our computer is a 300 watt converter, and the other one for the lamp is 60/60 Hz (I don't know how many watts it is.) Thanks, Lori
Lori <tighes asng netvigator.com>
Hong Kong, USA - Sunday, October 28, 2007 at 22:43:09 (PDT)
How can I run a lamp by battery??
Thanks
Karen

Karen <2featheryournest asng comcast dt net >
USA - Saturday, October 27, 2007 at 05:25:52 (PDT)
I've seen the page about the speed of "electricity" in a wire, but wasn't satisfied with the answer. What puzzled me and made me search for it was electric wires transmitting information signals, such as telephone conversations, at very high speeds.

OK, I know that today there are many means to carry such signals, in both analog and digital form, and not only through electric wires but also by microwaves, optical fibers, etc. All these other means carry electromagnetic waves, which travel at the speed of light (in optical fibers, they *are* light!), so it's no big deal if I, here in Brazil, talk to someone in Tokyo in real time, if the call is carried that way (eventual satellite delays notwithstanding, if that medium is used).

However, even today, long-distance and even overseas telephone lines still exist operating on old-fashioned copper cables, and they use electricity. Also, intra-urban landlines often use exclusively copper wiring, so the question is already significant for large metropolitan areas like the one I live in (São Paulo metro pop. about 18 million!), which stretch for dozens of kilometers/miles, yet one can have real-time phone conversations from one end to the other of the urban area, carried only by copper wires.

So, how fast does electricity or electrical energy or whatever travel through a wire so as to enable long-distance (or even intercontinental) telephone calls? Or putting it in another way, how fast do the signals of a telephone conversation travel if carried through electric wires?

Goyta' F. Villela Jr. <goytabr_nospam atsgn gmail dot com (remove _nospam)>
Sao Paulo, SP Brazil - Thursday, October 25, 2007 at 12:41:24 (PDT)
can u explan me MWAR/ACTIVE ENERGY/REACTIVE ENERGY
REGARDS

sz <sz3812 asng gmail dt com >
doha, qatar - Tuesday, October 23, 2007 at 18:14:10 (PDT)
Does a wire connected to the terminals of a battery emit electromagnetic waves?
Ntombekhaya <s20633304 asng nmmu.ac.za>
Uitenhage, RSA - Tuesday, October 23, 2007 at 02:34:04 (PDT)
Hi there,

First of all I would like to thank you for taking the time to try and clear up the numerous misconceptions that electonics students are exposed to. Your articles have really helped me in actually understanding the concepts rather than just memorising facts.

One thing I am still confused about though is to do with capacitors. I've read your article and it makes perfect sense, but when textbooks and teachers start talking about this physical quantity "capacitance", i just get confused. the most common definition of capacitance around is "the amount of charge stored in a capacitor for a given applied voltage". yet i don't understand how this ties in with the fact that capacitors don't actually store charge. please could you help explain capacitance to me in terms of seperating charges on the plates, rather than storing charge?

thanks, Michael

mike <michaelmcmanus23 asng gmail dt com >
UK - Monday, October 22, 2007 at 12:05:26 (PDT)
I would like to the deffention of the term open air when running electrical wire.
Jim Gutelius <gutelius5 asng dejazzd dt com >
Milton, Pa. USA - Wednesday, October 17, 2007 at 09:29:19 (PDT)
I Have a transformer input : 240 volts ac 50 Hz ....
output : 24v ac 3000 mA .
How many 24 v x 21 W lightbulbs can I light up at the one time

Casey Vandermaat <casey38van asng bigpond dt com >
Manoora, Qld Australia - Friday, October 12, 2007 at 18:59:46 (PDT)
I found out that my house is not grounded. Tell me the dangers of this. In addition there is alot of water draining underneath the house coming out of overflow pipe that needs to be fixed.

When I was very young I survived being shocked by the bathtub handle of a house that was not grounded. Can this happen again?

Suzanne <suzanwings asng msn dt com >
haleiwa, hi USA - Wednesday, October 10, 2007 at 12:20:12 (PDT)
Questions:

1. Why does an Ac give us shock
Whereas a dc holdus?

2.If we put a live wire in a tub full of water we get an Electric shock if we touch water, will we Experience a similar shock if we put alive wire in a sea and put our hands in it?

Please Answer with relevent answers.


THIS SITE IS VERY VERY USEFUL FOR KNOWLEDGE EXPLOSION

Arumugam(Six face) <sixface4u asng yahoo.co.in>
Kallidai Kurichi, Tamil nadu India - Saturday, October 06, 2007 at 03:26:38 (PDT)
Is there a way for electricity to be in effect 150ft away from the electric cord carring the ccurrent?
Robbi
USA - Monday, October 01, 2007 at 18:40:47 (PDT)
hello,
I have a small military generator 110 volt 400 cycle. I need to change the cycles to the standard 60 cycles. Would this be a big job and or expensive. Another question, I use alot of 12 volt dc power when I'm camping could I plug a 110 volt to 12 volt converter in to the generator since 12 volt dc does not use cycles or would it burn up my convertor. Thank you, Dale

Dale <drhine asng insightbb dt com >
Peru, IL USA - Saturday, September 29, 2007 at 02:31:26 (PDT)
two hairdryers cords were entangled. i hung them up together and the cheap wall hanger fell from the wall due to the weight, triggerng one of the hairdryers to go on.
it was the one WHICH WAS NOT PLUGGED IN.....can they be so entwined to carry the current outside the wire into another wire (neither are damaged)?

mary maloney <mml1155 asng yahoo dt com 484848484848484848>
ringwood , nj USA - Saturday, September 29, 2007 at 01:46:50 (PDT)
Hello there, great site, it has helped me understand electricity a lot better, however, I am having some trouble connecting this to real applications, and wanted some advice.

I want to build a board that is propelled by a series of backward-curved, motorized impeller centrifugal fans. There would be up to 12 fans; these have a VAC of 115 and a Power (W) of 185. I was told a 48V Lithium Ion battery would be the only solution to power even one fan, and want to verify this. I have not looked for AC versus DC fans, but have been told that DC would be a far more efficient solution.

The unit would also have to power a small computer that would calculate angle and trajectory, allowing for braking and turning by switching direction of the fan blades in a sequential order. This system would probably not require too much power, I guess the bulk of power would go to powering the unit.

The single fan supposedly lifted 200 pounds of weight less than 1" above the ground, I believe that the combined high-pressure propulsion system would negate the weight of a strong battery pack if the system was not too much of a power hog.

Finally... I would like to look into solar batteries if possible, for if thrust allowed for high altitude (50ft+) navigation there may be a potential for recharge during flight.

This is a lot of information, I am sure. I offer much of my plans because I am an extreme novice at DIY projects but am very enthusiastic at getting my hands dirty.

Matt Pelham <mattpelham asng gmail dt com >
Jamaica Plain, MA USA - Saturday, September 22, 2007 at 17:53:07 (PDT)
Dear Bill,

I am a fifteen year old teaching myself electricity and electronics I already know Ohms law and all direct current basics as I've read a book on it. Although I understand all of the relations I am still confused as to what a "voltage drop" actually is. When it is said that the voltage "drops" across a resistor, does this mean that the voltage actually decreases after going through a resistor?

This is how I understand voltage thus far. Work is required to cause a difference in the amount of electrons on two bodies. When a conductive path is given, the electrons will flow to the body with a deficiency of electrons and perform work on any resistance within the circuit. A battery is constantly doing work to maintain a potential difference. Here's what I don't get:

If I have a battery with an electrical potential of 10 Joules per Coulomb (volts) and I have a 2 Ohm resistor (R1) and a 3 Ohm resistor (R2) in series, there will be a current of 2 Amps flowing through the circuit. In the 2 Ohm resistor there will be a drop in electrical potential energy of 4 Joules per Coulomb. Therefore, the voltage right after R1 should be 6 Joules per Coulomb. Then, the current will go through R2 and the voltage should drop to 0 Joules per Coulomb. My question is, if there is 0 Joules per Coulomb after R2, how does the current make it to the positive terminal of the battery? It just makes sense that after going through each resistor, the potential energy of each charge (the joules per coulomb; volts) should decrease. Am I understanding this correctly? If not could you please explain electrical potential energy (voltage). Any help would be greatly appreciated. Thank you.

Anthony

Anthony <etersque26 atsgn optonline dt nett>
Deer Park, NY USA - Saturday, September 22, 2007 at 12:00:39 (PDT)
When did the USA swith from DC to AC electricity for everday consumption.
Curtis Shein <cdshein asng bellsouth,net>
Fair Play, SC USA - Saturday, September 22, 2007 at 08:47:34 (PDT)
I have a fuse that is rated 2 amps 120/240v in a DC circuit that is 12v DC. Is this fuse providing 2 amp protection, and if not, how many amps maximum is it protecting at?
Thanks,
Bob Knight

Bob Knight
Arlington, TN United States - Friday, September 21, 2007 at 06:54:20 (PDT)
Is it legal and is there a device to lock ON electrical breaker switches?
Ron Snyder <snyderron asng sbcglobal dt net >
Houston, TX USA - Thursday, September 20, 2007 at 12:20:56 (PDT)
in A.C generator carbon brush are used while carbon is insulator?>
why we don"t prefer metallic brush inctead of carbon brush?

talha mansoor <taj4taj asng yahoo dt com >
rahim yar khan, pakistan - Saturday, September 15, 2007 at 20:50:12 (PDT)
if resister are connected in series how can you find the total resistance of these resistors?
fiona <fnbentham asng yahoo.com>
Georgetown, Guyana - Saturday, September 15, 2007 at 16:19:26 (PDT)
By definition noise is the unwanted form of energy tends to interfere with actual signal.Then explain how the noise is getting added to the actual signal in case of solar noise that is what is happening to the signal and how it is getting modified?
renu <renu dt com munications>
guntur, andhra pradesh india - Wednesday, September 12, 2007 at 03:19:03 (PDT)
Is the atmosphere is full of ionized particals or not? If so how the noise is getting added to the wave transmitted?
renu <renu dt com munications>
guntur, andhra pradesh india - Wednesday, September 12, 2007 at 03:07:24 (PDT)
As someone with a BS in Civil/Environmental Engineering, THANK YOU for the discussions of electricity (in all its definitions). EM was the section of physics I hated the most, and understood the least (having never really dealt with it until college). I've recently become interested in VAWTs and other forms of home-brew power and thus am working to educate myself enough to not have to resort to the two-book method (phone and check) for putting such systems together. From here I go on to fnd resources to help me better understand different wiring setups (1-phase s 3-phase, rectifiers, etc.) and better understand how to select materials/equipment. Any suggestions not already listed in your site would of course be highly welcome. Thanks again!
Stacy McKenna Seip <stacymckenna asng juno dt com 1>
Sunland, CA USA - Sunday, September 09, 2007 at 04:17:15 (PDT)
What is meant by strobe effect?
renu <renu.electronics asng yahoo.co.in>
guntur, ap india - Monday, August 27, 2007 at 04:26:14 (PDT)
Almost every year a swimmer is killed here at the lake when they reach up and touch a dock ladder. Is there any device that can be installed in the water and mounted on the dock that will give a warning of high electrical potential in the surrounding water?
Jerry Walker <ozarkcountry4 asng @yahoo dt com >
Lake Ozark, Mo USA - Sunday, August 19, 2007 at 15:52:57 (PDT)
Can a Diode radiate any electromagnetic energy, when a hole in the p-type and an electron in the n-type are separated by means of a small distance after the application of small voltage i.e., below 0.2volts as in the case of silicon diode, due to the formation of an electric dipole at the junction?
ram prakash <ram_jalluri asng yahoo.co.in>
Guntur, AP INDIA - Saturday, August 18, 2007 at 04:52:26 (PDT)
Can a Diode radiate any electromagnetic energy, when a hole in the p-type and an electron in the n-type are separated by means of a small distance after the application of small voltage i.e., below 0.2volts as in the case of silicon diode?
ram prakash <ram_jalluri asng yahoo.co.in>
Guntur, AP INDIA - Saturday, August 18, 2007 at 04:50:29 (PDT)
how do you measure amps in a appliance ? when checking the breakers. do you combine both wires to get the total amps, or should you get your measure from one wire?
Raul Oquendo <yankee_rauloquendo asng hotmail dt com >
houston, tx USA - Sunday, August 12, 2007 at 02:07:45 (PDT)
Hi,I got an appliance from USA (an alarm +fm radio),it runs on 120 volt AC current according to USA voltage,but here in india we use 220 VOLT output.I didnot read the instruction manual and connected it to out source ie..220 VOLTS. The device worked for a minute, after which it got switched of automatically and it does not work now .Has the device undergone damage?
how do i solve this problem?

bala subramanian.k <bala.medic asng gmail dt com >
chennai, tamil nadu india - Friday, June 29, 2007 at 22:07:31 (PDT)
How do you draw a specific load from and alternator or a battery. I want to pull 15 amps off an alternator and have that go into an inverter. The problem is the inverter will not draw the power itself.
dave rogers <davejrog asng hotmail dt com >
me USA - Thursday, June 28, 2007 at 07:50:52 (PDT)
YOU ARE A DANGEROUS PERSON PEDDLING THIS QUACKERY !!! IF YOU HAD ANY RESPECT FOR THE PHYSICAL SCIENCES YOU WOULD REMOVE THIS HUGGER-MUGGER GOBBLEDEGOOK IMMEDIATELY. MISUNDERSTANDING ELECTRICITY IS THE ONLY SUREFIRED WAY TO AN EARLY GRAVE; ANYONE READING THIS PLEASE GO TO A SITE THAT WILL NOT PUT YOU AT RISK , AND STRUGGLE THROUGH THE DIFFICULTIES TO BE FOUND GRASPING THE CONCEPTS TO BE FOUND THERE.
ben brown <ob1ahman'yahoo dt com >
ipsidge, Suffolk u.k. - Wednesday, June 27, 2007 at 07:56:22 (PDT)
Water in an electric kettle connected to a 220v supply took 5 minutes to reach its boiling point. How long would it have taken if the supply had been of 200v?
Answer is 6 min.Please explain me.
Also.Please tell me the relation between voltage and time.

THanking you,
awaiting your reply
sumithra

Sumithra <amarnath.sumithra asng gmail dt com >
Hyderabad, A.P INDIA - Friday, June 22, 2007 at 07:27:28 (PDT)
It is very interesting website i have never visited.I was searching like this website for the past few months

please sent me the answer for the question below
1.what is the difference between a voltage and currrent?

NANDA KUMAR <nandaec_86 asng sify.com >
CHENNAI , tm INDIA - Wednesday, June 13, 2007 at 06:23:23 (PDT)
I want the whole information and pictures and materials required to buil a model of a dam ( to produce electrical energy )
Babulal <babulals asng tatasky dt com >
Ambala, Harayana INDIA - Sunday, June 10, 2007 at 04:06:31 (PDT)
How do you disable an electric current safely besides turning off the switch?
John Quinn
USA - Thursday, June 07, 2007 at 21:18:07 (PDT)
I have no problems to use three 12v batteries to power a 36v motor.

My question is,,, will a 12v solar array (with a CHARGE CONTROLLER), hooked to a single battery, also charge the other batteries without damage to the FIRST battery?

PLEASE REMOVE the 99 from my email address to reply

thanx in advance

scotty

jim scott <tauber822g99 asng sbcglobal dt net >
sparks, nv USA - Tuesday, June 05, 2007 at 19:59:52 (PDT)
. What is the effect of high earth continuity on fault current?PAT
17. Why are three Portable Appliance used?

18. What is the voltage between two different phases on three systems?

20. What are the additional risks when using three phase equipment?

raj <rajan.sidhu asng tesc dt net >
hounslow, uk - Tuesday, May 29, 2007 at 02:51:16 (PDT)
Please help I've been given a small generator from Japan which is 110 volts output, I want to convert it to 240 volts because I live in Australia can you help do this please.
Ceasar

ceasar morales <bullethead1962 asng hotmail dt com >
Sydney, NSW Australia - Saturday, May 05, 2007 at 21:12:17 (PDT)
Hi, I would like to know if it would make a difference if we use same voltage to charge a laptop but lower current. This laptop requires 20v and 8A input. What would happen if we supply 20V with 3.5A input. Also what would happen if we try vice-versa? Thanks
Sukhi <gillre asng hotmail.co.uk>
Leeds, UK - Friday, May 04, 2007 at 20:43:12 (PDT)
Okay I am sure that this might be the dubest question you have probably gotten, sorry.

I had heard somewhere that static eclectricity from an on coming train can actually cause your car to short out if you are on them at a stop light or something. Maybe it messes with the car battery or something. Just wondering if it were true? Not sure where or even when i heard it but, just curious. Thanks!

Rob <rbutler55 asng yahoo dt com >
USA - Friday, May 04, 2007 at 07:33:43 (PDT)
how do ac generatores work?(5or6 pages)
thank you.

ranjbar sajad <www.hiva_tafti asng yahoo dt com >
newgersi, USA - Monday, April 30, 2007 at 06:53:47 (PDT)
how do ac generatores work?
ranjbar sajad <www.hiva_tafti asng yahoo dt com >
newgersi, USA - Monday, April 30, 2007 at 06:47:42 (PDT)
I am traveling to Japan with a 120 v. hair straightener. Japan uses 100 V. I can not find a step down converter. Any suggestions as to what I need or where I can find such an item. I live in a bigger city and Radio Shack, or any of the other hardware/electrical stores had such an item. Is it necessary?
Marion Peters <mdpeters asng highstream dt net 000>
Raymond, IA USA - Wednesday, April 25, 2007 at 12:06:50 (PDT)
Why do gfi outlets ruin nightlights, and will not fully charge "rechargables" plugged into them?
Larry E. Randall <jewelblue61 asng yahoo dt com >
Maurertown, Va. USA - Tuesday, April 24, 2007 at 15:56:13 (PDT)
I was wondering why a 6 volt battery is bigger than a 9 volt battery. I was hoping you could tell me. Thanks!
Carly <awesome49557@@@@aim... dt com >
Monroe, WI USA - Thursday, April 19, 2007 at 15:15:19 (PDT)
Hi there,

Could you go into a bit more depth as to why voltage can be stepped up and down with AC, but not with DC? Thanks!

David <rev91770#gmail.com>
Brooklyn, NY USA - Thursday, April 19, 2007 at 08:27:38 (PDT)
Everyday of my entire life I have been subjected to electrical shocks from pretty much everything..car doors, escalators, fridges, computers, toasters, my mp3 player even from clothes and other people. The other day I touched the fridge door and got a shock which ran the whole way up my arm to my neck! I asked a friend to touch it and she felt nothing. I guess my question is..is this normal? what causes the static in my body responsible for the shocks and why are some people more prone to shocks than others?
Sincerly
Emma.

Emma <squiddilly asng hotmail.com>
Salta, Argentina - Tuesday, April 17, 2007 at 13:38:32 (PDT)
Will light fixtures that are used in the states with 120 volts ac also work with 100 volts ac in Japan? The same with a Motor that uses 120 volts ac likt the ones in celing fans?
clayton bryant <claytonbryant asng hotmail dt com >
Naha, Japapn - Saturday, April 07, 2007 at 23:11:51 (PDT)
Sir,
I may sound bit stupid but I have to ask:
Can sound produce Energy/Electricity.
Because as I know sound waves can carry energy.
Movement of electrons in one direction produces electricity.
Air can be Ionised.
Velocity of sound increases with increase in density.


Afaaq Sayeed <afaaqs*%gmail dt com >
Srinagar, JK India - Monday, April 02, 2007 at 07:11:50 (PDT)
Could anyone answer why after fixing a new fluorescent strip light to existing wiring why after appro 5-6 hours would the new light fitting flick on and off repeatedly we have refitted 5 new fittings and replaced the wiring but it is still doing it can anybody help I am getting quite desperate
Ann Hillas <annhillas asng aol dt com >
england - Wednesday, March 21, 2007 at 10:33:32 (PDT)
How do you generate current electricity?
Refuoe
Johannesburg, SA - Monday, March 19, 2007 at 06:38:46 (PDT)
Why is it that the neutral wire that completes the electrical circuit will not shock when touched?
For example if a light bulb is supplied power from the hot line and the neutral line completes the circuit when the light is turned on how come the electrons that flow through the neutral line while light is on do not give a shock when touched.
Thanks inadvance..............
Sorry for submitting same question again but my email address had a typo in first sent question.

Dieter <dieterschwartz asng sympatco.ca>
ajax, on Canada - Sunday, March 18, 2007 at 17:02:34 (PDT)
Why is it that the neutral wire that completes the electrical circuit will not shock when touched?
For example if a light bulb is supplied power from the hot line and the neutral line completes the circuit when the light is turned on how come the electrons that flow through the neutral line while light is on do not give a shock when touched.
Thanks inadvance..............

Dieter <diterschwartz asng sympatco.ca>
ajax, on Canada - Sunday, March 18, 2007 at 17:01:04 (PDT)
What is volt usage in dubai? Is is 230 volts?
donna godin <donna asng houseoftroy dt com >
hyde park, vt USA - Thursday, March 08, 2007 at 11:31:03 (PST)
Do unused appliances use electricity (ex. toaster)
tammy <tdrossman asng sbcglobal dt net >
sandusky, oh USA - Wednesday, March 07, 2007 at 12:19:35 (PST)
Explain how you know that it is an eletric field, not electrons, that moves rapidly through a circuit
Denise Nunes <ld7367 asng aol dt com >
Plymouth, MA USA - Tuesday, March 06, 2007 at 19:13:23 (PST)
I was searching for an answer, but I only found the question on your site. What was the answer given to this question that was submitted in 2005?
Is there a formula or equation that can give the answer to how far can electric travel when generated.
ex. If you are using a generator how far can that electric travel through wire?

Adrian Seltzer <cre8ov asng gmail dt com >
wynnewood, pa USA - Wednesday, February 28, 2007 at 17:34:41 (PST)
i need a 5.1 amplifier circuit and its operation for my speakers. i'm currently designing it.
Loyiso <sityana asng webmail.co.za>
East London, RSA - Friday, February 23, 2007 at 01:14:29 (PST)
if a charge flows "who exactly is the magnetic field created". before that "what exactly is magnetic field and what is its medium of response"
sanjay ladwa <sanjay_ladwa asng yahoo.co.in>
bangalore, karnataka india - Thursday, February 22, 2007 at 07:21:13 (PST)
at the starting point of view "what happens in the battery such that their is a current , when wire is connected"
sanjay ladwa <sanjay_ladwa asng yahoo.co.in>
bangalore, karnataka india - Thursday, February 22, 2007 at 06:27:55 (PST)
if you say "charge is at rest". then may i know generally you are speaking with "which frame of reference?"
sanjay ladwa <sanjay_ladwa asng yahoo.co.in>
bangalore, karnataka india - Thursday, February 22, 2007 at 06:12:11 (PST)
Does electricity flow through all liquids?
emily <xxsmilezxx asng sbcglobal dt net >
USA - Wednesday, February 21, 2007 at 18:18:55 (PST)
I have a GE microwave that has two surface lights they dont burn out they turn silver and put out as much light as a candle might why?
jonh taber <sugerbear asng cox dt net >
norman, Oklahoma USA - Tuesday, February 20, 2007 at 07:46:15 (PST)
name 7 diffrent ways electcity can kill you
bob <bob asng hotmail dt com >
london, england - Sunday, February 04, 2007 at 10:24:04 (PST)
what is so special about iron that magnets attract them and not most other things?
nikhil gadewar <gad_ng asng yahoo.co.in>
USA - Sunday, February 04, 2007 at 00:27:30 (PST)
Is it true that it is safer to have electricity enter your body through your left hand and arm vs. the right hand and arm because of the way electricity flows through your body?
mike <mgemmill1 asng mmm dt com >
perth, on ca - Friday, February 02, 2007 at 05:14:44 (PST)
In one of my books, "Electronic Fundamentals", there is a brief intro to magnetism. In this section, when referring to flux lines, it says, "Flux lines have direction or polarity. The direction of the flux lines outside the magnet are arbitrarily assumed to be from the north pole to the south pole." Why (and How) is this assumption made, especially when referring to a permanent magnet? Are there any tests I can perform with both 'permanent' and 'electro' magnets to verify this assumption?
Mr. P.
ID USA - Wednesday, January 31, 2007 at 22:21:40 (PST)
i experience a current when i touch a live wire standing on the ceramic tiles(on the third floor),but the theories say that ceramic is a bad conductor of electricity.
samarth <sam1_jos asng yahoo.co.in>
mumbai, maharashtra india - Wednesday, January 31, 2007 at 05:46:46 (PST)
Why do I measure around 120VAC from HOT to NEU but only half that much from HOT to GRD?
Jerry <ministerjerry asng yahoo dt com >
USA - Saturday, January 27, 2007 at 18:46:38 (PST)
How does the electrical energy continue to flow foward in an AC circuit while the electrical charges move back and forth?
Steve Herren <steveherren asng hotmail dt com >
White House, TN USA - Wednesday, January 24, 2007 at 20:11:48 (PST)
whats the differance between a watt and a kilowatt
arnie <ar891 asng yahoo dt com >
cowpens, sc USA - Wednesday, January 24, 2007 at 15:02:47 (PST)
thank for givin a wonder full answar of very tough ques.that is mind confusin ,but after read this site my lots of doubts will be clear.PLS GIVE SOME INFORMATION ABOUT THE HUMAN BODY STATIC CURRENT.I THINK IN THE BODY HAS SOME CURRENT.I NEW N ENTHUSISTICS TEACHER OF PHYSICS.
THNKS .

jani jaydatt <jaydatt_janu14 asng yahoo.co.in>
bhavnagar, gujarat india - Tuesday, January 23, 2007 at 00:06:48 (PST)
Hi, I was wonering how the power plant works and alot of information about it, and I was also wondering about how you recieve electricity to your homes, etc.
Chloe Kim <cherryflakes7337 asng hotmail dt com >
Stockholm, Sweden - Sunday, January 21, 2007 at 09:43:50 (PST)
1. How does an electrical utility company regulate voltage to keep us end users happy with 120v consistently?

2. What is your view on gravity vs electro magnetic fields? "The Final Theory" and many articles from Tesla point out that laws of gravity are flawed.

3. Are there medicinal uses for electricity/magnetism or adverse effects of exposure to close proximities of electricity?

Travis M <tman421 asng gmail dt com >
Ellensburg, WA USA - Wednesday, January 17, 2007 at 00:29:22 (PST)
can you name me 10 condctors for my dt homework because my dad doesnt know any so could u please
georgina louise mitchell <georgia3008 asng aol.co.uk>
england, london UK - Tuesday, January 16, 2007 at 09:38:04 (PST)
Hi
Need Help

Trying to understand why a object that is positively charged by static electicity can become balanced or neutralized by the touch of a person.
Why not for a person touching only the positive terminal of a battery? Why would electrons "not" flow to the positive terminal via the person from ground and attempt to neutralize as in the case of a positive charged object.

Thanks
James

James
Canada - Monday, January 15, 2007 at 10:24:35 (PST)
I was just wondering if it is dangerous if you have too much static electricity in your home. Where we live we cant touch anything or anyone without being zapped and I was wondering what could cause so much static? If it was dangerous and how can we prevent it? I would gladly like any advice you can give. Thanks Bree
Bree Shoptaugh <breeshoptaugh asng yahoo dt com .au>
San Diego, CA USA - Sunday, January 14, 2007 at 18:38:53 (PST)

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