Charge $q_{2}$ is at the centre of a circular path with radius $r$. Work done in carrying charge $q_{1}$, once around this equipotential path, would be

  • [AIPMT 1994]
  • A

    $\frac{1}{4 \pi \varepsilon_{0}} \times \frac{q_{1} q_{2}}{r^{2}}$

  • B

    zero

  • C

    $\frac{1}{4 \pi \varepsilon_{0}} \times \frac{q_{1} q_{2}}{r}$

  • D

    infinity

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