Two metal pieces having a potential difference of 
are 
apart horizontally. A particle of mass 
is suspended in equilibrium between the plates. If e is the elementary charge, then charge on the particle is
Text Solution
Verified by ExpertsThe correct answer is:
B
For equilibrium mg = qE
∴ ∴ 
⇒ ⇒ 
⇒ ⇒ 
⇒ ⇒ n = 3.
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