An electric bulb draws a current of 0.8A and works on 250 V on an average of
8hours a day.
a. Find the power consumed by the bulb.
b. If the electric distribution company charges Rs.5 for 6 KWh, what is the
current bill for one month?
Dear Student
Using,
P=V x I
P = 250 x 0.8 = 200W = 0.2kW
Power consumed in a day=0.2 x 8 = 1.6kWh
For one month,
P = 1.6 x 30 = 48kWh
Charge for 1 kWh = 5/6 = Rs. 0.83
Monthly bill = 48 x 0.83=Rs 39.99 = Rs. 40
Regards