Question

5.
A 25 W electric bulb is used for 10 hours every day. How much electricity does it consume each day?​

Answer 1

Answer:

e= power × time

e= 25×10

e=250Whr

e= 0.2kWhr

Answer 2

Answer:

The electric bulb consumes 0.25 k W hr energy each day.

Explanation:

P = 25 W

So,

1000 W = 1 k W

=> P = 25 W

=> P = 25/1000 kW

=> P = 0.025 k W

Energy consumed = Power * Time

=> E = 0.025 * 10

=> Energy = 0.25 k W hr

The electric bulb consumes 0.25 k W hr energy each day.