Many things such as tvs (and microwaves) are always "on" if plugged in-they use a very minimal power to maintain that state, but some power is being used, some electricity is being used to power the small amount of activity that is happening. Things with power cords that include an AC to DC power supply (like for a laptop computer) also use electricity even if the power supply is not sending any power to the laptop. The power supply box will almost always be warm, and that energy of heat has to come from somewhere, after all.
In contrast, however, things such as lights do not usually consume any energy when switched off.
Typically, the amount of power each unit or appliance is consuming will be on the order of a cent or so per day at most (a few dollars a month, perhaps, if you have many such things), as long as you aren't using them for their higher functions.
Kind of like a dripping faucet where you have to pay for your water. It isn't much that is being used or lost, but it does add up with time.
Yes, the clock on your microwave, dvd player, etc. uses some power. Other switches in your home, if not activating an appliance (like a switch that operates an outlet) doesn't use any power if nothing is plugged into it.
Believe it or not, it does. Just because the electricity is not being used doesn't mean a thing. Electricity still travels through the cords and completes a full circuit. However, some of the energy dampens along the way and your electric company still adds that to your bill. Rule of thumb: if you aren't using it, unplug it.
Yes! The LED display consumes power but it is very little & negligible. But the good practice is to switch 'OFF' the wall outlet switch when not in use in regard for safety & conservation. It is applicable for all your appliances.
Obviously, when he switch is on My microwave shows the time but does it also take up that much electricity? Like, if the switch is just on and I'm not actually using the microwave for anything more than it showing the time...and does the same apply for other things too? ..cause I've heard it does..thanks in advance :)