does a cell phone charger use electricity when its pluged in to an outlet but not to phone?

Answer 1

Yes, but only a teeny, teeny little bit. If there's an LED on the front it needs power for that, and also A/C adapters "leak" power even when there is nothing hooked up to them.

Answer 2

It does not consume electricity. It works on flea power . The power consumed depends on kind of charger you have.

if its a bulky (Ironcore type charger) like in older Quallcomm/nokia charger it consumes ~ 10-15 Watts

On the other hand the modern day phone chargers(light weight) have electronic circuitry(mosfet type) that consume almost nil (~ 0.1-0.7 Watts) on standby.

Hope this answers your power consumption query.

For further talk....Yahoo IM me @ { neojessi }

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There are two kinds of power Active power - that does work (VA) and imaginary(VAR) power ...that just for calculation sake and does no work.....its role is only to reason why there is increase the current consumed by a device than expected by manufacturer. this is observed in capacitive/inductive devices.....(eg. motor is inductive load , tubelight(choke part makes itinductive) is inductive load)

...Its might sound crazy..butit is helpful in various industrial applications where the loads can be Capacitive/inductive. Capacitive loads produce (-VA) and inductive loads produce (+VA) . Hence to control the power factor.make the +VA = -VA to obtain....less current drawn by device.


Eg. a tubelight consumes 40 W. at 0.7 power factor.
But its VA 40 / (0.7) = 57 VA

its rated at 57 VA ...so the power source supplies 57/110 Amps.

andNot 40 /110 Amps..(asyou might expect)

Now the 57(VA of tubelight)-40 (wattage,actual power consumed and o/p transfered as light +some heat)= 17 VA..

The 17 VA lost hasno explaination in any...books..
This is imaginary componentof current and does not work at all.!

Similarly........the phone charger has some current consumption that does no work at all ! ....


Sorry to BORE you with so much technical discussion...but just might be for your/someone's knowledge.

Answer 3

yes, it used electricity to charge the battery, but it doesnt need that much!

Answer 4

no dude, it doesnt ? it just starts counting when u connect it 2 to ur cell

Answer 5

Yes but not as much.

Answer 6

Yes. Notice it's warm even when not in use.

Answer 7

No, it doesn't. (Unless it has a little light to tell you it's plugged in...the light uses a little electricity...)

Answer 8

yes"not alot "but yes

Answer 9

Very little but it does...