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QNEET-2021-Ph-614: NEET 2021 Physics - Class 11 NEET-2021-Ph-614 Solution: Water falls from a height of 60 m at the rate of 15 kg/s to…
Water falls from a height of 60 m at the rate of 15 kg/s to operate a turbine. The losses due to frictional force are 10% of the input energy. How much power is generated by the turbine? (g = 10 ) 7.0 kW 10.2 kW 8.1 kW 12.3 kW
Multiple Choice Options
- A 7.0 kW
- B 10.2 kW
- C 8.1 kW
- D 12.3 kW
Step-by-Step Verified Solution
E = mgh
P input = m g h t
= 15 _ 10 _ 60 1 = 9000 = 9 kW
10% loss = 0.9 _ 10 3
P output = 9 _ 10 3 _ 0.9 _ 10 3 = 8.1 kW