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Questions  

64 drops of  mercury each charged to a potential of 10V are combined to form one bigger drop. The potential of this drop will be (Assume all the drops to be spherical):

a
160 V
b
80 V
c
10 V
d
640 V

detailed solution

Correct option is A

V=n2/3v=(64)2/3×10=160 volt

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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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