Question

If a 20 W Light Bulb run for 10 hours ,what is the energy consumed by the light​

Answer 1

e=pt

energy= 20*10

energy=200joule

Answer 2

Answer:

200 J energy is consumed by light.

Explanation:

Power = Work done/Time

20 = x / 10

= x = 20 × 10

x = 200 J

Since work done and energy are same.

Work done and energy value will be same.

Hence 200 J energy is consumed by light.