Does an adapter consume electricity if switched on but not connected to a mobile phone?

Question

If an adapter is plugged in and switched on, without a mobile/appliance (printer/laptop...etc) connected, does it consume the same amount of electricity as it would have it was connected to a laptop or charging a phone?

Answer 1

anytime a power point is switched on it costs u electricity (but not as much as if it was running)

Answer 2

YES indeed it consumes a small amount of current. Vary from one watts to 5 watts. Power adaptor always in standby when you plug it into the power source. It shall not shut it off completely.

Answer 3

It will not consume the same amount as if it were connected to something, but it will still consume a bit.

The older, heavier linear adapters have a big iron-cored transformer inside and a rectifier circuit, which is running all the time the thing is plugged into the wall. It's normally running at under a watt just sitting there idling though.

However, the newer, lighter, switch-mode power supplies consume much less power when not being used due to their construction. They can normally shut themselves down partially when not under load.

Answer 4

Good Question

initially i had the same Doubt when i was YOung

let me Explain it to u

the thing is that

when the adapter is not connected to the mobile phone the adapter does not consume power since it's open CIRCUITED

there fore i wont consume power but i'll consume power in form of LIGHT LED thats negligible

Answer 5

yes it does

Answer 6

it definitely does, just get a switch put in a convenient place for you to use, it'll save a fair bit of money in the long run