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Questions  

A thin spherical conducting shell of radius R has a charge q. Another charge Q is placed at the centre of the shell. The electrostatic potential at a point p a distance R2 from the centre of the shell is

a
(q+Q)24πε0R
b
2Q4πε0R
c
2Q4πε0R-2q4πε0R
d
2Q4πε0R+q4πε0R

detailed solution

Correct option is D

Electric potential at P,V=k·QR/2+k·qR =2Q4πε0R+q4πε0R

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Similar Questions

Two spherical shells are as shown in figure.

Let r be the distance of a point from their common centre.  Then, match the following columns and mark the correct choice from the given codes.

 Column-I Column-II
i.Electric field for r < R1p.is constant for q2 and vary for q1
ii.Electric potential for r < R1q.is zero for q2 and vary for q1
iii.Electric potential for R1 < r <R2r.is constant
iv.Electric field for R1 < r <R2s.is zero

Codes:


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