A charged oil drop of mass 
is in space between the two plates, each of area 
of a parallel plate capacitor. When the upper plate has a charge of 
and the lower plate has an equal negative charge, the oil remains stationary. The charge of the oil drop is (take, 
):
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
We know that, 
Electric field, 
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