A hollow conducting sphere of inner radius $R$ and outer radius $2R$ is given a charge $Q$ as shown in the figure, then the :
A hollow conducting sphere of inner radius $R$ and outer radius $2R$ is given a charge $Q$ as shown in the figure, then the :
- A
potential at $A$ and $B$ is different
- B
potential at $O$ and $B$ is different
- C
potential at $O$ and $C$ is different
- D
potential at $A,B,C$ and $O$ is same
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If a point charge $q_A$ is placed at the center of the shell, then choose the correct statement $(s)$