A given charge situated at a certain distance from an electric dipole in the end on position, experiences a force F. If the distance of the charge is doubled, the force acting on the charge will be :
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The electric field at a distance r from the dipole is →E=K2Pr3
, so E∝1r3
Force on charge q is F=qE also F∝1r3
If distance r is doubled, then force will F′=F8
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