WBJEE · Physics · Electrostatics
The work done in carrying a charge \(\mathrm{Q}\) once around a circle of radius \(\mathrm{r}\) about a charge \(\mathrm{q}\) at the centre is
- A \(\frac{q Q}{4 \pi \varepsilon_0 r}\)
- B \(\frac{q Q}{4 \pi \varepsilon_0} \frac{1}{\pi r}\)
- C \(\frac{q Q}{4 \pi \varepsilon_0}\left(\frac{1}{2 \pi r}\right)\)
- D \(0\)
Answer & Solution
Correct Answer
(D) \(0\)
Step-by-step Solution
Detailed explanation
Work done by conservative force in a round trip is zero
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