Question

What is the work done in moving a charge of $0.4C$ across two points having a potential difference of $8V$?

• A. 3.2

Answer 1

The correct option is A 3.2
The potential difference ($V$) between two points is the amount of work done ($W$) in moving a unit positive electric charge ($q$) from one point to another in a current carrying conductor.

$\Rightarrow$$V=\frac{W}{q}$
$\Rightarrow W=V\times q$

Given: $q=0.4C$
$V=8V$
Therefore, the work done in moving the charge $=8V\times 0.4C=3.2J$.