Question

an electric bulb 40 watt and 1 horsepower electric motor used for 5 hours and half hour respectively how many units of electricity will be consumed?
prepare electric bill for January month 4.25 rupees per unit​

Answer 1

Explanation:

Given : P=40 W =0.04 kW t=5 h

Thus total energy used in 5 hours

E=Pt=0.04×5=0.2 kWh

∴ Bill to be paid = 0.2×2= Rs 0.4