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In the figure a capacitor is filled with...

In the figure a capacitor is filled with dielectrics `K_(1)`,` K_(2)` and `K_(3)`. The resultant capacitance is

A

`(2epsilon_(0)A)/(d)[1/(K_(1))+ 1 / (K_(2))+1 /(K_(3))]`

B

`(epsilon_(0)A)/(d)[1/(K_(1))+ 1 / (K_(2))+1 /(K_(3))]`

C

`(2epsilon_(0)A)/(d)[K_(1)+K_(2)+K_(3)]`

D

None of these

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