First slide

Capacitance

Question

A parallel plate capacitor is made by stacking n equally spaced plates connected alternately. If the capacitance between any two adjacent plates is C, then the resultant capacitance is

Easy

A

C
B

n C
C

(n+1) C
D

(n - 1) C

Solution

For n plates joined alternately, there will be (n - 1) capacitors connected in parallel Fig. Their

equivalent capacitance will be $C_{eq} = (n - 1) C .$

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