Question

If $3.2\text{J}$ of work is done in moving $0.4\text{C}$ of charge in a circuit, find the potential difference (in $\text{V}$) across the circuit.

• A. 8

Answer 1

The correct option is A 8
Given,
Charge, $\text{q}=0.4\text{C}$
Work, $\text{W}=3.2\text{J}$
We know that

$\text{V}=\frac{\text{W}}{\text{q}}$

$V=\frac{3.2}{0.4}=\frac{32}{04}=8$

$\therefore$ Potential difference = $8\text{V}$