A standard lamp will not use any electricity when it is off.
No, it should not use any electricity when off. If it is, you have a short or a ground.
No.
no
you use up energy and it is turned into heat
If it is plugged in, it uses 15% of the electricity it would normally use if it were on. Always unplug your appliances.
Yes. Not as much but if it is plugged in it will still use some power.
No. When the switch is open, off position, no current flows. The light needs current to operate.
Because a lit lamp use energy. Switch it off and you save energy.
Yes, many electronic gadgets continue to use electricity even though they have been turned off. This energy use is called standby power use.
No, they use more electricity.
None, unless there's a radio or someting else built into the lamp base.
electricity, turned with a crank