An electric kettle rated at 220 V, 2.2 kW, works for 3 hours. Find the energy consumed and the current drawn.
V=220 V, P=2.2 kW=2200 W, t=3 h
We know that
Electrical energy consumed = P x t = 2.2 × 3 = 6.6 kWh
We have, P = V x I 2200 = 220 x I I=10 amp
