Some do some dont. If theres nothing been plugged into it for awhile, is it warm? If its warm, that means it must be using -some- electricity (albeit maybe just a tiny bit)
It is an electronic device. A sort of one way valve for electricity.
Because it runs on electricity.
The flowing of electricity (amperage) is governed by the internal resistance of the connected device.
The same way any other electronic device does.
LG high definition liquid crystal display (LCD) is considered an electronic device, specifically it is a television. Since it runs on electricity, it is considered an electronic device.
It Is Technology Is Use, Electric Energy Is Used To "CHARGE" It Up.
Yes, it has electronic components inside that are powered by electricity (either mains AC and or battery DC).
transitor
Electronic devices convert electricity into information
when a capacitor or any chargeable device connected across a load which may be resistive or inductive than the capacitive device discharges and this discharging of this device is called electronic discharge . it is used in CCD (charged coupled devices).
If a device is switched off at the wall, then that is equivalent of being unplugged and it will not use electricity. However any device with a transformer in it that is switched off at the device (not the wall) will continue to use electricity. Televisions etc are like this, so are mobile phone chargers.
A method for the CPU to communicate with the device, Software to instruct and control the device, and Electricity to power the device.