A solid conducting sphere having a charge Q is surrounded by an uncharged concentric conducting spherical shell. Let the potential difference between the surface of the solid sphere and the outer surface of the shell be V. If the shell is now given a charge −3Q, the new potential difference between the same two surfaces is:

A solid conducting sphere having a charge Q is surrounded by an unchar

1.	A solid conducting sphere having a charge Q is surrounded by an uncharged concentric conducting spherical shell. Let the potential difference between the surface of the solid sphere and the outer surface of the shell be V. If the shell is now given a charge −3Q, the new potential difference between the same two surfaces is:
Answer» A solid conducting sphere having a charge $Q$ is surrounded by an uncharged concentric conducting spherical shell. Let the potential difference between the surface of the solid sphere and the outer surface of the shell be $V .$ If the shell is now given a charge $- 3 Q,$ the new potential difference between the same two surfaces is:

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