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 $ V _{big}={{n}^{2/3}}v _{small} $
therefore $ \frac{V _{Big}}{v _{small}}={{(8)}^{2/3}}=\frac{4}{1} $
