Q.A solid metallic sphere has a charge $+3Q$ . Concentric with this sphere is a conducting spherical shell having charge $Q$ . The radius of the inner sphere is $a$ and that of the outer shell is $b$ ( $b>a$ ). What is the electrostatic potential difference between the two spheres? (JEE Advanced 2016)

Q(1/a - 1/b)/(4\pi\epsilon_0)

3Q/(4\pi\epsilon_0 a)

Qb/(4\pi\epsilon_0 a^2)

Q(a-b)/(4\pi\epsilon_0 ab)

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

Already a member? Login here