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

Options

A. `(n-1)C`
B. `(n+1)C`
C. `C`
D. `nC`

Answer

A

Explanation

Each plate is taking part in the formation of two capacitors except the plates at the ends.
These capacitors are in parallel and n plates form (n-1) capacitor.
Thus, equivalent capacitance between A and B=(n-1)C.