Question

In a uniform electric field a charge of $3C$ experiences a force of $3000N$. The potential difference between two points $1cm$ apart along the electric lines of force will be:

• A. $10V$
• B. $30V$
• C. $100V$
• D. $300V$

Answer 1

The correct option is A $10V$

Given force $=3000N$ on $3C$
We know F$=qE$
$\Rightarrow E=\frac{F}{q}$

$E=\frac{3000}{3}$ $=1000$

We know V$=E\times d$
$=1000\times 1\times {10}^{-2}$
$=10volts$