Question

A charge +qis revolving around a stationary +Q in a circle of radius r. If the force between charges is F then the work done of this motion will be

• A. F × r
• B. $F \times 2\pi r$
• C. $\frac{F}{2\pi r}$
• D. 0

Answer 1

Answer: (D)

0

Answer 2

Since +q charge is moving on an equipotential surface so work done is zero.