Question

an electric pump has 2KW power how much water will the pump lift every minute to height of 10 m

Answer 1

Power (P) = 2 KW = 2000 W

Time (t) = 1 minute = 60 seconds

Height (h) = 10 m

Now,

Power = Work done / Time

P = mgh / t

2000 = mass * 10 * 10 / 60

m = 2000 * 60 / 100

mass = 1200 kg

Now, density of water = 1000 kg/ m^3

Density = Mass / Volume

Volume = Mass / Density

Volume = 1200 / 1000 m^3

Volume = 1.2 m^3 = 1200 litres

∴ 1200 L of water will the pump lift every minute to height of 10 m.

Hope this helps you !!