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Electrostatics question

2019 · 12 Apr · Shift 1 · Q65
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Electrostatics question

2019 · 12 Apr · Shift 1 · Q65

JEE MainPhysicsElectrostaticsMCQ+4 / −1
Shown in the figure is a shell made of a conductor. It has inner radius a and outer radius b, and carries charge Q. At its centre is a dipole P→\overrightarrow PP as shown. In this case : JEE Main 2019 (Online) 12th April Morning Slot Physics - Electrostatics Question 186 English
  1. A
    surface charge density on the inner surface is uniform and equal to (Q/2)4πa2{{\left( {Q/2} \right)} \over {4\pi {a^2}}}4πa2(Q/2)​
  2. B
    surface charge density on the inner surface of the shell is zero everywhere
  3. C
    surface charge density on the outer surface depends on ∣P→∣\left| {\overrightarrow P } \right|​P​
  4. D
    electric field outside the shell is the same as that of a point charge at the centre of the shell
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