Q. 123.5( 10 Votes )

# Two insulating sm

Answer :

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 ϵ_{0} is the permittivity of free space

k is the electrostatic constant

q_{1} and q_{2} 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.

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