A. 100w
B. 200w
C. 400w
D. 500w
Correct Answer:
Option D – 500w
Explanation
Power is the time rate of doing work
i.e power = energy/time
Since energy = mgH
∴ power = mgH/t
= 50×10×5/t
= 500W
A. 100w
B. 200w
C. 400w
D. 500w
Correct Answer:
Option D – 500w
Explanation
Power is the time rate of doing work
i.e power = energy/time
Since energy = mgH
∴ power = mgH/t
= 50×10×5/t
= 500W
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