it requires `50 muJ` of work to carry a `2 muC` charge from a paint R to S. What is the potential difference between these points ? Which point is at higher potential ?

Answer

25V

Explanation

`V_(S) - V_(R) = (W)/(q) = (50xx10^(-6))/(2xx10^(-6)) = 25V`
S is at higher potential, since work is done to carry a positive charge from R to S.