Two insulating sm

Given,

Electric force between the two spheres,

Distance between the two spheres,

We know that, magnitude of charge on electron,

Let n electrons be transferred from one sphere to another. Then, charge on one sphere is +ne and the other is -ne.

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Formula used:

By Coulomb’s law, the electric force is given by:

Where ϵ₀ is the permittivity of free space

k is the electrostatic constant

q₁ and q₂ are the magnitude of charges

r is the distance of separation between the charges

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The magnitude of electric force is given by:

Hence, about electrons are transferred.