Question

If an electric iron of $1200\text{W}$ is used for $30$ minutes every day, electric energy consumed in the month of April is -

• A. $\text{5 kWh}$
• B. $\text{10 kWh}$
• C. $\text{16 kWh}$
• D. $\text{18 kWh}$

Answer 1

The correct option is D $\text{18 kWh}$

Electric energy consumed,

$E=Pt$

$\Rightarrow E=\frac{1200}{1000}\times \frac{30}{60}\times 30=18\text{kWh}$

Hence, option $\left(D\right)$ is the correct answer.