Write a relation for the electrostatic force between two point charges placed in a dielectric medium.

Electrostatic forces between two point charges is called central force. Why?

Electrostatic force between two charges is called central force.Why?

Write general expression for force between two point charges.

Find the electrostatic force between two protons placed in free space separated by distance 20 cm.

Assertion : The electrostatic force between the plates of a charged isolated capacitor decreases when dielectric fills whole space between plates. Reason : The electric field between the plates of a charged isolated capacitance decreases when dielectric fills whole space between plates.