Electrostatics — JEE Advanced 2019 · JEE Adv 2019 Paper 1, Paper 1 · Q2

Question

A thin spherical insulating shell of radius R carries a uniformly distributed charge such that the potential at its surface is V₀. A hole with a small area α 4 π R²(α 1) is made on the shell without affecting the rest of the shell. Which one of the following statements is correct?

Accepted Answer

(C) The ratio of the potential at the center of the shell to that of the point at 1/2 R from center towards the hole will be (1-α)/(1-2 α)

Answer

(A) The potential at the center of the shell is reduced by 2 α V₀

Answer

(B) The magnitude of electric field at the center of the shell is reduced by (α V₀)/(2 R)

Answer

(D) The magnitude of electric field at a point, located on a line passing through the hole and shell's center, on a distance 2 R from the center of the spherical shell will be reduced by (α V₀)/(2 R)

Electrostatics: JEE Advanced 2019 Physics question

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Electrostatics: JEE Advanced 2019 Physics question

More on Electrostatics