Q.A spherical capacitor has inner radius a and outer radius b. The charge on inner sphere is Q. The potential of inner sphere w.r.t. infinity is

\dfrac{Q}{4\pi \epsilon_0} \left( \dfrac{1}{a} - \dfrac{1}{b} \right) + \dfrac{Q}{4\pi \epsilon_0 b}

\dfrac{Q}{4\pi \epsilon_0 a}

\dfrac{Q}{4\pi \epsilon_0 b}

\dfrac{Q}{4\pi \epsilon_0} \left( \dfrac{1}{a} + \dfrac{1}{b} \right)

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

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