A generator is on daily use and in the process; ten 60 W and five 40 W tungsten bulbs are on for the same time interval. The energy consumed daily is?

A. 0.96 kWh
B. 19.2 kWh
C. 9.60 kWh
D. 19.20 kWh

Correct Answer:

Option B = 19.2 kWh

Explanation

Energy consumed = power x time
= (60 W x 10 + 40 W x 5) x 24 h
= (600 W + 200 W ) x 24 h
= 800 W x 24h = 19200 w h
= 19.2 kWh