Am I wasting electricity?

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Jan 6, 2009
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I just have a few questions-

1) Is it more expensive to have a lamp on at the plug socket, or the main light on (with a light switch)

2)If the heating is on in the house, if i switch it off in my room will it save costs? or is it just a waste because it is being paid for in the whole house?

3) Does it cost anything when a lamp is plugged in (switched on at the plug) but the light isn't actually on?

4) does it cost when a CD player is switched on, but there is nothing playing?

Thanks x
 
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