Question

An eletric bulb is rated 40w what is the energ cansume jules if its is uced for 100 m

Answer 1

Time taken,t = 100min = 6000s
Power rating = 40W
Hence,
Energy consumed = Power rating × Time
= (40× 6000) = 240000J
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Answer 2

we know the formula of energy = power * time

first convert minutes to seconds

100 * 60 = 6000 seconds

so

energy = 40 * 6000  = 240000 joules

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