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How much heat does a 40W bulb generate in 1 hour? 

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How much heat does a 40W bulb generate in 1 hour? 

(1) 144000J 

(2) 144J 

(3) 1.44J 

(4) 14J

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1 Answer

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Best answer

(1) 144000J

Conceptual 

Power = 40W 

Time = 1 hour = 3600sec 

Energy = 40(3600) 

= 144000J

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