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The space between the plates of a parall...

The space between the plates of a parallel plate capacitor is filled conseutively with two dielectric layers fo thickness `d_(1) and d_(2)` having relative permittvities `in_(1) and in_(2)` respectively. If A is area of each plate, what is the capacity of the capacitor ?

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As effective thickness of dielectric os `1//in` times the actual thickness, therefore, we may write the capacity of condenser as `C = (in_(0) A)/((d_(1))/(in_(1)) + (d_(2))/(in_(2)))`
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