. An electric pump is used to fill an overhead talk of capacity 9𝑚3 kept at a height of 10𝑚 above the ground. If the pump takes 5 minutes to fill the tank by consuming 10𝑘𝑊 power the efficiency of the pump should be (Take 𝑔 = 10𝑚𝑠 −2 )

Question: . An electric pump is used to fill an overhead talk of capacity 9𝑚3 kept at a height of 10𝑚 above the ground. If the pump takes 5 minutes to fill the tank by consuming 10𝑘𝑊 power the efficiency of the pump should be (Take 𝑔 = 10𝑚𝑠 −2 )

(A) 60%

(B) 40%

(C) 20%

(D) 30%

Answer: Option (D)

Solution:

. An electric pump is used to fill an overhead talk of capacity 9𝑚3 kept at a height of 10𝑚 above the ground. If the pump takes 5 minutes to fill the tank by consuming 10𝑘𝑊 power the efficiency of the pump should be (Take 𝑔 = 10𝑚𝑠 −2 )
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