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Question

n charged drops, each of radius r and charge q, coalesce to form a big drop of radius R and charge Q. If V is the electric potential and E is the electric field at the surface of a drop, then :

A
Ebig=n2/3Esmall
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B
Vbig=n1/3Vsmall
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C
Esmall=n2/3Ebig
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D
Vbig=n2/3Vsmall
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