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(B) For a uniformly charged non-conducting solid sphere of radius $R$ and total charge $Q$,the potential at the surface $(V_s)$ and the potential at t

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$\frac{V}{2}$

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(B) For a uniformly charged non-conducting solid sphere of radius $R$ and total charge $Q$,the potential at the surface $(V_s)$ and the potential at the centre $(V_c)$ with respect to infinity are given by:$V_s = \frac{1}{4\pi\epsilon_0} \frac{Q}{R} = V$$V_c = \frac{3}{2} \frac{1}{4\pi\epsilon_0} \frac{Q}{R} = \frac{3}{2}V$If we shift the reference point such that the potential at the surface becomes zero,we subtract $V$ from the potential at every point.New potential at the surface,$V'_s = V_s - V = V - V = 0$New potential at the centre,$V'_c = V_c - V = \frac{3}{2}V - V = \frac{V}{2}$

There is a uniformly charged non-conducting solid sphere made of material of dielectric constant $1$. If the electric potential at infinity is zero,then the potential at its surface is $V$. If we take the electric potential at its surface to be zero,then the potential at the centre will be

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