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[" 169) A hollow charged metal sphere ha...

[" 169) A hollow charged metal sphere has a radius "r" .If the potential difference between its surface "],[" and a point at distance "3" r from the centre is "V" ,then the electric intensity at distance "3" r from "],[" the centre is: "],[[" (a) "," (b) "," V "," (a) "V]]

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