Electrostatics Question 17

Question: Eight small drops, each of radius r and having same charge q are combined to form a big drop. The ratio between the potentials of the bigger drop and the smaller drop is [CPMT 1983, 89; MP PMT 1989, 94]

Options:

A) 8 : 1

B) 4 : 1

C) 2 : 1

D) 1 : 8

Show Answer

Answer:

Correct Answer: B

Solution:

By using Vbig=n2/3vsmall

therefore VBigvsmall=(8)2/3=41



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