Question

On moving a charge of 20 coulomb by 2 cm, 2J of work is done, then the potential difference between the points is:
[AIEEE - 2002]

• A. 0.1 V
• B. 8 V
• C. 2 V
• D. 0.5 V

Answer 1

The correct option is A 0.1 V

As we know,
ΔV = $\frac{\Delta U}{q}$
Given, ΔU = 2J
q = 20 C
$\Rightarrow \Delta V=\frac{2}{20}=0.1V$