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A parallel plate capacitor of area A, plate separation d and capacitance C is filled with three different dielectric materials having dielectric constants k_(1),k_(2) and k_(3) as shown. If a single dielectric naterial is to be used have the same capacitance C in this capacitor, then its dielectric constant k is given by |
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Answer» `(1)/(k)=(1)/(k_(2))+(1)/(k_(2))+(1)/(2k_(3))` |
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