Q99 / 120 · VITEEE 2012 · Physics

A hollow conducting sphere is placed in an electric field produced by a point charg placed at $\mathrm{P}$ as shown in figure. Let $\mathrm{V}_{\mathrm{A}}, \mathrm{V}_{\mathrm{B}}, \mathrm{V}_{\mathrm{C}}$ be the potentials at points $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$ respectively. Then Figure

  • A
    $\mathrm{V}_{\mathrm{C}}>\mathrm{V}_{\mathrm{B}}$
  • B
    $\mathrm{V}_{\mathrm{B}}>\mathrm{V}_{\mathrm{C}}$
  • C
    $\mathrm{V}_{\mathrm{A}}>\mathrm{V}_{\mathrm{B}}$
  • Correct answer
    D
    $\mathrm{V}_{\mathrm{A}}^{\mathrm{B}}=\mathrm{V}_{\mathrm{C}}$

Solution

Conducting surface behaves as equipotential surface.

Hence, the correct answer is option: 'D'.

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