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A parallel plate capacitor with square p...

A parallel plate capacitor with square plates is filed with four dielectrics of dielectric constants `K_(1),K_(2),K_(3),K_(4),` arranged as shown in the figure. The effective dielectric constant K will be :

A

`K=((K_(1)+K_(3))(K_(2)+K_(4)))/(K_(1)+K_(2)+K_(3)+K_(4))`

B

`K=((K_(1)+K_(2))(K_(3)+K_(4)))/(2(K_(1)+K_(2)+K_(3)+K_(4)))`

C

`K=((K_(1)+K_(2))(K_(3)+K_(4)))/(K_(1)+K_(2)+K_(3)+K_(4))`

D

`K=((K_(1)+K_(4))(K_(2)+K_(3)))/(2(K_(1)+K_(2)+K_(3)+K_(4)))`

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