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Question: Answered & Verified by Expert
If 1000 droplets each of potential $1 \mathrm{~V}$ and radius $r$ are mixed to form a big drop. Then, the potential of the drop as compared to small droplets, will be
PhysicsElectrostaticsVITEEEVITEEE 2014
Options:
  • A $1000 \mathrm{~V}$
  • B $800 \mathrm{~V}$
  • C $100 \mathrm{~V}$
  • D $20 \mathrm{~V}$
Solution:
1747 Upvotes Verified Answer
The correct answer is: $100 \mathrm{~V}$
Potential of big drop $=\mathrm{q} \times \mathrm{n}^{2 / 3}=100 \mathrm{~V}$

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