We know that,
kettle power, P = 2.5 kW
Potential difference V = 250 V
t = 2 h
since, Energy, E = P × t
E = 2.5 × 2
E = 5 kWh
Cost per unit of energy = ₹ 5.40
Cost for 5 kWh of energy = 5.40 × 5 = ₹ 27
An electric kettle is rated 2.5 kW, 250 V’. Find the cost of running the kettle for two hours at ₹ 5.40 per unit
An electric kettle is rated 2.5 kW, 250 V’. Find the cost of running the kettle for two hours at ₹ 5.40 per unit