Question

If the electric potential between two points A and B is $2V$ and $4V$ respectively. Then, how much work isdone in bringing a point charge of $8\mu C$ from point $A$ to point $B$ ?

Answer 1

$q_0=8\mu C$
$q_0=8\times {10}^{-6}C$
Potential differnce between A and B
$V_B-V_A=\frac{W_{AB}}{q_0}$
$4-2=\frac{W_{AB}}{8\times {10}^{-6}}$
$W_{AB}=2\times 8\times {10}^{-6}$
$W_{AB}=16\times {10}^{-6}J$
$W_{AB}=1.6\times {10}^{-5}J$