Electrical energy to heat and the energy of visible light

Reference no: EM13664493

A room is lighted with four 100 W incandescent light bulbs. (The power of 100 W is the rate at which a bulb changes electrical energy to heat and the energy of visible light.) Assuming that 77% of the energy is converted to heat, how much heat does the room receive in 6.7 h?

Reference no: EM13664493

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