The potential inside a charged hollow sphere is __________.

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SSC JE EE Previous Year Paper 16 (Held On: 3 March 2017 Morning)
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  1. Zero
  2. Same as that on the surface
  3. Less than that on the surface
  4. None of these

Answer (Detailed Solution Below)

Option 2 : Same as that on the surface
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Detailed Solution

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  • The electric field inside a conducting sphere is zero, so the potential remains constant at the value it reaches the surface.
  • When a conductor is at equilibrium, the electric field inside it is constrained to be zero.
  • Since the electric field is equal to the rate of change of potential, this implies that the voltage inside a conductor at equilibrium is constrained to be constant at the value it reaches the surface of the conductor.
  • A good example is the charged conducting sphere, but the principle applies to all conductors at equilibrium.


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