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Q.

A conducting sphere of radius b has a spherical cavity with its centre displaced by ‘’a’’ from centre of sphere. A point charge q is placed at the centre of cavity, ‘Q’ charge is given to conducting sphere and charge  q0  is  placed at a distance c from centre  (O1)  of sphere such that O1,O2   and P are collinear 

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a

charge distribution of outer surface of conducting sphere is non uniform 

b

Potential of conductor is  (q04π0c+Q+q4π0b)

c

Intensity of electric field at O1  is 14π0q0c2  

d

Charge distribution on inner surface cavity is uniform 

answer is A, B, C.

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Detailed Solution

Charge distribution is uniform in inner surface and  non –uniform on outer  surface 

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=K(Q+q)b+K(q0)c
 

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