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Question 6061
NEET Physics · Hard

Work, Energy & Power: Power MCQ

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PowerHardQuestion 6061

Question

Pump (efficiency 80%) raises 1000 L water/min to 10 m (g = 10 m/s²). Input power required:
  1. A
    2083 W
    Correct
  2. B
    1667 W
  3. C
    2000 W
  4. D
    1333 W

Correct answer

2083 W

Explanation

P_out = 1000×10×10/60 = 1667 W. P_in = 1667/0.8 = 2083 W.

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