Question

an electric heater draw a current of 10
a from 220 v supply what is the cost of
using heater for 30 days is the cost of lut
is
5.20​

Answer 1

I = 10A

V = 220V

P = VI

P = 2200W = 2.2 kW

cost of heater is 30× 2.2 × 5.2 = Rs 343.2