The particle p has a mass of 10 mg and a q of 0.01
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Given that mass of particle m = 10mg
Charge 1 = – 0.01μC
A = 100cm2 Let potential = V
The Equation capacitance C = 0.04/2 = 0.02μF
The particle may be in equilibrium, so that the wt. of the particle acting down ward, must be balanced by the electric force acting up ward.
∴ qE = Mg
Electric force = qE = q(V/d)
where V – Potential, d – separation of both the plates.
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