Electrostatics Question 18
Question: 1000 small water drops each of radius r and charge $ q $ coalesce together to form one spherical drop. The potential of the big drop is larger than that of the smaller drop by a factor of [CPMT 1991, 97; NCERT 1984; MP PMT 1996; MP PET 2002]
Options:
A) 1000
B) 100
C) 10
D) 1
Show Answer
Answer:
Correct Answer: B
Solution:
$ V _{Big}={{n}^{2/3}}v _{small}={{(1000)}^{2/3}}v _{small}=100v _{small} $
