Question

An electric bulb consumes 500 J of electrical energy in 5 s. What is its power?

Answer 1

Step1: Given data:

Energy(E) = 500 J

Time(t) = 5 s

Step2: Calculation for Power

As we know,

$$\begin{gathered} Power\left(P\right)=\frac{Energy\left(E\right)}{Time\left(t\right)} \\ Power\left(P\right)=\frac{500J}{5s} \\ Power\left(P\right)=100W \end{gathered}$$

Hence, the power will be 100 W.