the electrostatic force between two point charges is 42n. if we place a dielectric of relative electrical permittivity = 2 between the charges, then force will be
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The force will remain 42N because force between two charges depend only upon magnitude of charge and distance between them
Nothing can change the force between them
But if we place dielectric between capacitor than force changes
If initial force is X and dielectric value is K
than force become k^2X only in case of capacitor (with voltage applied)
Additional information
Formula of capacitance= Q/v
Formula of force Betweencapacitance=Q^2/2£AE
Where £= relative permittivity constant
A=Area of plates
E= electric field
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