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An electric pump is used to fill an overhead tank of  capacity 9  kept at a height of 10 m above the ground .If the pump takes 5 min  to fill the tank by consuming 10 KW .power the efficiency of the pump should be (Take g=10 )

a)

60 %

b)

40 %

c)

20 %

d)

30 %


Question ID - 51004 :-

An electric pump is used to fill an overhead tank of  capacity 9  kept at a height of 10 m above the ground .If the pump takes 5 min  to fill the tank by consuming 10 KW .power the efficiency of the pump should be (Take g=10 )

a)

60 %

b)

40 %

c)

20 %

d)

30 %

1 Answer
5876 Votes
3537

Answer Key : (d) -

(d)

Work done in raising water=mgh

Or 

Hence, efficiency=



Next Question :

A particle is projected at  to the horizontal with a kinetic energy . The kinetic energy at the highest point is

a)

b)

c)

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