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MHT CET202120 Sep 2021Evening ShiftPhysicsElectrostaticsActual

A uniformly charge half ring of a radius ' R ' has linear charge density ' '. The electric potential at the centre of the half ring is ( ₀= . permittivity of free space)

Options

  1. A6 ₀
  2. B2 ₀
  3. C₀
  4. D4 ₀

Correct answer

D. 4 ₀

Step-by-step solution

If q is charge on the ring, then the potential at the centre is given by V = 1 4 ₀ q R But q = R V = 1 4 ₀ R R = 4 ₀

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