Which is the correct expression for capacitance of a multi plate capacitor?

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Question

Which is the correct expression for capacitance of a multi plate capacitor?

Options:

A . C=absolute permittivity*A/d

B . C=Actual permittivity*(n-1)*A/d

C . C=Actual permittivity*(n)*A/d

D . Actual permittivity*(n+1)*A/d

Answer: Option B
Answer: (b).C=Actual permittivity*(n-1)*A/d

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