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Question
An oil drop has a charge of 6.4×10−19 C. Find out the number of electrons in the oil drop.
An oil drop has a charge of 6.4×10−19 C. Find out the number of electrons in the oil drop.
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Solution
The correct option is A 4
We know, quantization of the charge = Q=ne
where n = whole number of electons
e = charge of the electron = 1.6×10−19 C
Given, Q = 6.4×10−19
= n × 1.6×10−19
So n = 4
We know, quantization of the charge = Q=ne
where n = whole number of electons
e = charge of the electron = 1.6×10−19 C
Given, Q = 6.4×10−19
= n × 1.6×10−19
So n = 4
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