Electrostatics Question 447

Question: A drop of 106kg water carries 106C charge. What electric field should be applied to balance its weight (assume g=10m/s2) [MP PET 2002]

Options:

A) 10 V/m upward

B) 10 V/m downward

C) 0.1 V/m downward

D) 0.1 V/m upward

Show Answer

Answer:

Correct Answer: A

Solution:

By using therefore E=mgQ=106×10106=10V/m; upward because charge is positive.



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