Q. 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
A) 1000
B) 100
C) 10
D) 1
Explanation
(b) $V_{Big} = n^{2/3}v_{small} = (1000)^{2/3}v_{small} = 100v_{small}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.