A parallel plate capacitor with square plates is filled with four
dielectrics of dielectric constants \( K_{1}, K_{2}, K_{3} \) and \( K_{4} \)
arranged as shown in the figure. The effective dielectric
constant \( K \) will be
img src=https://penpencil-static-content.s3.ap-south-1.amazonaws.com/5eb393ee95fab7468a79d189/mxa7wwif4xog7l7avsizpdr5y.png /
(a) \( K=\frac{\left(K_{1}+K_{2}\right)\left(K_{2}+K_{4}\right)}{2\left(K_{1}+K_{2}+K_{3}+K_{4}\right)} \)
(b) \( K=\left[\frac{K_{1} K_{2}}{K_{1}+K_{2}}+\frac{K_{3} K_{4}}{K_{3}+K_{4}}\right] \)
(c) \( K=\frac{\left(K_{1}+K_{2}\right)\left(K_{3}+K_{4}\right)}{2\left(K_{1}+K_{2}+K_{3}+K_{4}\right)} \)
(d) \( K=\frac{\left(K_{1}+K_{2}\right)\left(K_{3}+K_{4}\right)}{\left(K_{1}+K_{2}+K_{3}+K_{4}\right)} \)
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