Two material having the dielectric constants $K_{1}$ and $K_{2}$ are filled between two parallel plates of a capacitor,which of shown in figure.The capacity of the capacitor is :

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Solution

In Parallel Combination:
$C_{e q} = C_{1} + C_{2}$
$\frac{ϵ_{o} (\frac{A}{2}) K_{1}}{d} + \frac{ϵ_{o} (\frac{A}{2}) K_{2}}{d} = \frac{ϵ_{o} A (K_{1} + K_{2})}{2 d}$

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