An electric pump draws water from a well of depth 50m at a rate of 2m3 per second. The water is ejected from the pump with velocity, v=10ms−1. If the efficiency of the pump η=80, the input power consumption of the pump is: (g=10ms−2)
A
1100kW
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B
880kW
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C
1375kW
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D
1080kW
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Solution
The correct option is C1375kW Power supplied by pump =WDt=Δ(P.E)t=mght =2×103×10×50