Question

The pump of water distribution system is powered by 15 kw electric motor and whose efficiency is 90 percent .

Answer 1

Efficiency = power output /power input × 100

Efficiency = 90%

? Power input = 15kW

Power output =?

Doing the substitution :

90 = (P(output) /15)  × 100

90 = 100p/15

90 × 15 = 100p

1350 = 100p

P = 1350/100

= 13.5kW

Answer 2

Answer:

Explanation:

We know that:

Efficiency=Power output/Power input

=> 90/100=Power output/(15*1000)

=>(9/10)*15000=Power output

=>13500W=Power output

Hence,13.5kW is the answer.

Hope you understood