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A parallel plate capacitor with air as medium between the plates has a capacitance 10 mF. The area of the capacitor is divided into two equal halves and filled with two media having dielectric constants K1 = 2 and K2 = 4. The capacitance of the system will be

a
10 mF
b
20 mF
c
30 mF
d
40 mF

detailed solution

Correct option is C

Cp=K1+K22C0 =2+42 x 10=30 mF

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