Question

Work done in carrying an electric charge $Q_{1}$ once round a circle of radius $R$ with a charge $Q _{2}$ at the center of the circle is

• A. $\frac{ Q _{1} Q _{2}}{4 \pi \varepsilon_{ 0 } R }$
• B. $\infty$
• C. $\frac{ Q _{1} Q _{2}}{4 \pi \varepsilon_{ 0} R }$
• D. Zero

Answer 1

Answer: (D)

Electrostatic force is a conservative force so work done in carrying an electric charge Q, once around a circle of radius R will be zero