A hollow metal sphere of radius 5, cm is char | vedclass

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(B) For a charged hollow metal sphere,the electric field inside the sphere is zero $(E = 0)$.Since the electric field is the negative gradient of the

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$10\, V$

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(B) For a charged hollow metal sphere,the electric field inside the sphere is zero $(E = 0)$.Since the electric field is the negative gradient of the potential $(E = -dV/dr)$,if $E = 0$,then the potential $V$ must be constant throughout the interior of the sphere.Therefore,the potential at any point inside the sphere,including the centre,is equal to the potential on its surface.Given that the potential on the surface is $10\, V$,the potential at the centre is also $10\, V$.

$A$ hollow metal sphere of radius $5\, cm$ is charged such that the potential on its surface is $10\, V$. The potential at the centre of the sphere is

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