Work Energy And Power Question 188

Question: From a waterfall, water is falling down at the rate of 100 kg/s on the blades of turbine. If the height of the fall is 100 m, then the power delivered to the turbine is approximately equal to [KCET 1994; BHU 1997; MP PET 2000]

Options:

A) 100 kW

B) 10 kW

C) 1 kW

D) 1000 kW

Show Answer

Answer:

Correct Answer: A

Solution:

$ P=( \frac{m}{t} )gh=100\times 10\times 100=10^{5}W=100\ kW $



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