Physics · Electrostatics
A number of point charges are fixed at arbitrary positions inside a closed hollow conducting shell. The conductor is isolated and initially uncharged. After the electrostatic equilibrium is established, which one among the following statements about the electric field outside the conductor is correct?
- 1It vanishes only if the charges are symmetrically arranged.
- 2It depends only on the net charge enclosed within the cavity.✓
- 3It is necessarily zero everywhere outside.
- 4It depends on the positions of the internal charges.
Correct answer
It depends only on the net charge enclosed within the cavity.
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