Question

The potential at a point is $10\text{V}$. The work done in bringing a charge of $2\text{C}$ from infinity to this point will be -

• A. $5\text{J}$
• B. $10\text{J}$
• C. $20\text{J}$
• D. $25\text{J}$

Answer 1

The correct option is C $20\text{J}$

We know that the potential at infinity is taken as zero.

Work done, $w=q\times \Delta V$

$=2(10-0)=20\text{J}$