Q. 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
A) $(n - 1)C$
B) $(n + 1)C$
C) $C$
D) $nC$
Explanation
(a) 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 $(n - 1)$ capaitors.
Thus, equivalent capacitance between points $A\ and\ B = (n - 1)C$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.