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Asseration: A point charge q is placed a...

Asseration: A point charge `q` is placed at centre of spherical cavity inside a spherical conductor as shown. Another point charge `Q` is placed outside the conductor as shown. Now as the point charge `Q` is pushed away from conductor, the potential difference `(V_(A) - V_(B))` between two points `A` and `B` within the cavity of sphere remains constant.

Reason: The electric field due to charges on outer surface of conductor and outside the conductor is zero at all points inside teh conductor.

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