Question

In a small electric plant at your home,
45 kJ energy is generated. Then how
long you can power a incandescent
bulb of 45W approximately?
A) 45 min.
B) 16.67 min.
C) 20.25 min.
D) 45 sec..​

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Answer it....

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Answer 1

Answer:

option b

Explanation:

energy = power x time

therefore, time = energy/ power

time in sec

power in watt

energy in joules

putting values...energy= 45 x 10^3 J

    power = 45 watt

we get time= 1000 sec = 1000/60 min =16.67 min