Two equal balls having equal positive charge ‘q’ coulombs are suspended by two insulating strings of equal length. What would be the effect on the force when a plastic sheet is inserted between the two?
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when we insert the plastic sheet permittivy changes to relavtive permittivity. so making Force directly proportional to K(dielectric const.) therefore increase in K(as in case of plastic)will increase the force.
pnksg:
but F is inversely proportional to the absolute permittivity of the medium
that's the only confusion that I have
please clear my doubt
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