64 small drops of mercury, each of radius r and charge q coalesce to form a big drop. The…
Physics · JEE Main · NTA Exams — Electrostatics
64 small drops of mercury, each of radius r and charge q coalesce to form a big drop. The ratio of the surface density of charge of each small drop with that of the big drop is :
- 64 : 1
- 1 : 64
- 1 : 4
- 4 : 1
Answer
(D) 4 : 1
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