Question

How many units of energy will be consumed by a 100 watt refrigerator in 30 days, if it works for 16 hours everyday?

Answer 1

Power = 100 W or 100/1000 = 1/10 kW

Time = 16 hrs

Energy = P*T = 16/10 = 1.6 kW H

Total energy = 1.6 * 30 = 48 kW H or 48 units.

Hope it helps.