Question

The work done in carrying $20$ coulomb charge through a distance of $5$ m is $2J$. The potential difference between these two points will be:

• A. $2\times {10}^{-1}V$
• B. $1\times {10}^{-2}V$
• C. $2\times {10}^{-2}V$
• D. $1\times {10}^{-1}V$

Answer 1

The correct option is D $1\times {10}^{-1}V$

We know work done $W=q\Delta V$

$q\to charge$

$\Delta V\to potentialdifference$
$\Rightarrow 2=\Delta V\times 20$
$\Rightarrow \frac{1}{10}=\Delta V$
$\Rightarrow \Delta V=1\times {10}^{-1}V$