A conducting shell `S_1` having a charge Q is surrounded by an uncharged concentric conducting spherical shell `S_2`. Let the potential difference between `S_1` and that `S_2` be V. If the shell `S_2` is now given a charge `-3Q`, the new potential difference between the same two shells isA. `V`B. `2V`C. `4V`D. `-2V`

A conducting shell `S_1` having a charge Q is surrounded by an uncharg

1.	A conducting shell `S_1` having a charge Q is surrounded by an uncharged concentric conducting spherical shell `S_2`. Let the potential difference between `S_1` and that `S_2` be V. If the shell `S_2` is now given a charge `-3Q`, the new potential difference between the same two shells isA. `V`B. `2V`C. `4V`D. `-2V`
Answer» Correct Answer - A According to principle of generator `PD` in this case only depends on the charge on inner shell.

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