question_answer

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     AIEEE  Solved  Paper-2005

A) \[(n-1)C\]       

B)        \[(n+1)C\]          

C)        C                            

D)        \[nC\]

Correct Answer: A

Solution :

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 formcapacitors. Thus, equivalent capacitance between A and B