if an electric appliance is off but still plugged in, will it still use up power?

Answer 1

Depends on the type of appliance.

Most will not, but things that have internal computers or chips to keep the time, will still use a small amount of power to keep the internal battery charged. (For example: VCR's, satellite tv boxes, DVD players, laptops, certain computers, mp3 players, clock radios.)

If your stove or microwave has a clock built into it, it still uses some power to run the clock. Simple appliances like a toaster that literally have an on and off switch for the whole unit probably wouldn't use any power at all in the off position.

The only way to make sure that you are not using any power is to completely unplug the device.

Check your manual for detailed information and power ratings, or contact the manufacturer.

Answer 2

It all depends on the electronic device. A computer power supply will light the LED when not in use, and depending on the construction, may or may not waste power. A toaster will usually not use any electricity when off, unless it's a high tech digital toaster with a time display or something. Basically, for the most part, yes. But a good engineer will take care to have a minimal "sense" voltage running until it is activated and runs at full power.

Answer 3

Some will and some won't. The appliances that do consume power while turned off are using what is known as "phantom power" usually 5 to 25 watts of power. The best way to tell if the appliance is using phantom power is to ask the question(s); does this thing need to remember settings? does this thing need to wait to receive an IR signal from a remote control? does this thing have a soft touch button to turn it on? (as opposed to a mechanical switch such as a light switch, or a toaster pull down) If any of those questions are true, then your appliance will be using minimal power while turned off often referred to as standby mode.

Answer 4

These days, a lot of appliances use a bit of power when they are plugged in but not in use.
Anything with a clock probably uses power. Anything with a glowing LED light when off definitely uses power. Most TV's with a picture tube draw some current to speed up their "on" time.
In each of these cases, the current drawn is very minimal.

Answer 5

It depends on how the power transformer and switch are connected. If the transformer is always connected to the outlet, there will be a small power drain. You can usually tell by listening carefully for a hum with the gadget off but plugged in. If you hear one, the transformer is making it.
Also, some modern gadgets draw power for various reasons -- to keep electronic components warmed up, for example.
In short, the answer is maybe, but not much.

Answer 6

if the appliance has a power converter ,TV, Microwave and so on yes, Things like light bulbs and toasters without any kind of LEDs do not consume power until the circuit is closed