Electrostatics

Question: On rotating a point charge having a charge q around a charge Q in a circle of radius r. The work done will be



1) $q \times 2\pi r$
2) $\frac{{q \times 2\pi Q}}{r}$
3) Zero
4) $\frac{Q}{{2{\varepsilon _0}r}}$
Solution: Explanation: Explanation
electric-field-potential

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