Question

An electric fan consumes 1500 J of energy in half an minute. The power of fan is _____ ?

• A. 50 Watt
• B. 150$J{s}^{-1}$
• C. 45 Watt
• D. 200 $J{s}^{-1}$

Answer 1

The correct option is A

50 Watt

Step 1: Given

Energy consumed = 1500 J

Time = 30 seconds

Step 2: Calculating the power:

We know that, $Power=\frac{energy}{time}$

$P=\frac{E}{t}$

substituting the given values

$$\begin{gathered} P=\frac{1500}{30} \\ P=50Watt \end{gathered}$$

Therefore, the power of the fan which consumes 1500 J in half a minute is 50 Watt

Hence Option A is correct