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3 answers

because electricity gives off heat no matter where it is.

2006-11-09 02:15:49 · answer #1 · answered by dizzymisslizzy 2 · 0 2

because of the filiment in the lightbulbs give off heat. A normal lightbulb wastes 90 % of the electricity in heat vs. giving off light.

How long are you keeping the door open in order to heat those lightbulbs up?

2006-11-09 02:16:24 · answer #2 · answered by brian c 5 · 2 0

Resistance.

2006-11-09 03:06:06 · answer #3 · answered by bob r 4 · 0 0

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