Question

A $12\text{V}$ battery connected to a bulb drives a current of $2\text{A}$ through it. Find the energy supplied by the battery in $10\text{minutes}$.

• A. $12.4\text{kJ}$
• B. $13.4\text{kJ}$
• C. $15.4\text{kJ}$
• D. $14.4\text{kJ}$

Answer 1

The correct option is D $14.4\text{kJ}$

Energy supplied by the battery,

$E=VIt$

$\Rightarrow E=12\times 2\times 10\times 60$

$\Rightarrow E=14400\text{J}=14.4\text{kJ}$