Question

It would cost a man Rs. 3.50 to buy 1.0 kW h of electrical energy from the Main Electricity Board. His generator has a maximum power of 2.0 kW. The generator produces energy at this maximum power for 3 hours. Calculate how much it would cost to buy the same amount of energy from the Main Electricity Board.

Answer 1

E = P × T

So, E = 3 × 2

E = 6 kWh

Cost of buying electricity from the main electricity board = 6 × 3.50 = Rs. 21.0