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Q.A point charge qq is placed at the centre of a neutral conducting spherical shell of inner radius aa and outer radius bb. The potential at the centre of the shell is

a
q4πϵ0a\dfrac{q}{4\pi\epsilon_0 a}
b
q4πϵ0b\dfrac{q}{4\pi\epsilon_0 b}
c
q(b−a)4πϵ0ab\dfrac{q(b-a)}{4\pi\epsilon_0 ab}
d
q4πϵ0(1a+1b)\dfrac{q}{4\pi\epsilon_0} \left( \dfrac{1}{a} + \dfrac{1}{b} \right)

Correct Answer: Option B

The correct solution involves applying the fundamental concept to derive the final value step by step...

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