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[" In a parallel plate capacitor the sep...

[" In a parallel plate capacitor the separation "],[" between the plates is "3mm" with air between "],[" them.Now a "1" mm thick layer of a material of "],[" dielectric constant "2" is introduced between the "],[" plates due to which the capacity increases.In "],[" piater to bring its capacity to the original value the "],[" separation between the plates must be made "],[[" (a) "1.5mm," (b) "2.5mm],[" (c) "3.5mm," (d) "4.5mm]]

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