Problem: An initially neutral conductor contains a hollow cavity in which there is a + 100 nCpoint charge. A charged rod transfer -50 nC to the conductor.Afterward, what is the charge:(a) on the inner wall of the cavity wall(b) on the external surface of the conductor?

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(a)

The charge on the inner wall of the cavity wall is the initial charge before the rod is charged.

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Problem Details

An initially neutral conductor contains a hollow cavity in which there is a + 100 nC
point charge. A charged rod transfer -50 nC to the conductor.

Afterward, what is the charge:
(a) on the inner wall of the cavity wall

(b) on the external surface of the conductor?

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