Work and Energy — Question 3

Given,

Time = 10 s

Work done = Energy consumed by the lamp = 1000 J

We know,

Power = $\dfrac{\text{Work done}}{\text{Time}}$

Substituting we get,

Power = $\dfrac{1000}{10}$ = 100 Js^-1 or 100 W

Hence, the power of the lamp is 100 W