Question

What is the potential difference across two points if $16\text{J}$ work is needed to move a $2\text{C}$ charge between them?

• A. $2\text{V}$
• B. $8\text{V}$
• C. $16\text{V}$
• D. $32\text{V}$

Answer 1

The correct option is B $8\text{V}$

Given,
Work done, $\text{W}=16\text{J}$ and total charge, $\text{Q}=2\text{C}$
Let the potential difference be $\text{V}$.
We know, $\text{V}=\frac{\text{W}}{\text{Q}}$
So, on substituting the values,
$\text{V}=\frac{16}{2}=8\text{V}$

Therefore, the potential difference is $8\text{V}$.