A spherical metallic conductor has a sph...

A spherical metallic conductor has a spherical cavity. A positive charge is placed inside the cavity at its centre. Another positive charge is placed outside it. The conductor is initially electrically neutral.
`{:(,"Column I (Cause)",,,"Column II (Effect)"),((A),"If outside is shifted to other position",,(p),"Distribution of charge on innner surface"),(,,,,"of cavity charges"),((B),"If inside charge is shifted to other position",,(q),"Distribution of charge on outer surface of"),(,,,,"conductor charges"),((C),"If magnitude of charge inside cavity is",,(r),"Electric potential at the centre of conductor"),(,"increased",,,"changes due to charges present"),(,,,,"on outer surface of conductor"),((D),"If conductor is earthed",,(s),"Force on the charge placed inside"),(,,,,"cavity changes"):}`

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The correct Answer is:

(A) q, (B) p, s (C) p, q, r (D) q, r

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Positive charge inside 2^(He) atom is…………..

`1.6 xx 10^(-19)` C

`2 xx 1.6 xx 10^(-19)` C

`4 xx 1.6 xx 10^(-19)` C

zero coulomb

there must be charges on the surface of inside itself

there cannot be any charge in the body of the conductor.

there must be charges only on the surface.

there must be charges inside the surface.

it remains at the same position.

it goes at the centroid of a conductor.

it remains at the surface of a good conductor.

none of above.