IAn empty thick conducting shell of inner radius a and outer radi… - Vidyadip

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$IAn$ empty thick conducting shell of inner radius $a$ and outer radius $b$ is shown in figure.If it is observed that the inner face of the shell carries a uniform charge density $-\sigma$ and the surface carries a uniform charge density $ '\sigma '$

Choose the correct statement related to the potential of the shell in absence of $q_B$

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