An isolated conductor, with a cavity, has a net charge +Q. A point charge +q is inside…
Physics · Class 12 · CBSE — Electrostatic Potential & Capacitance
An isolated conductor, with a cavity, has a net charge +Q. A point charge +q is inside the cavity. The charges on the cavity wall and the outer surface are respectively:
- 0 and Q
- -q and Q - q
- -q and Q + q
- 0 and Q - q
Answer
(B) -q and Q - q
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