Home » General Knowledge » Physics

A parallel-plate capacitor of capacitance C1is made using two gold plates. Another parallel-plate capacitor of capacitance C2is made using two aluminium plates with same plate separation, and all the four plates are of same area. If gand aPare respectively the electrical resistivities of gold and aluminium, then which one of the following relations is correct?

Correct Answer: C1 = C2

Explanation:

C1= capacitance of gold plates


C2=   capacitance   of   aluminium plates


rg= Gold’s resistivity


ra= Aluminium’s resistivity


As the capacitance depends on the shape,  size  &  geometrical  placing of  the  conductors  &  the  medium between them, hence, the value of capacitance  will  be  independent  of resistivity. Therefore, C1= C2


← Previous Question Next Question→

Discussion & Comments

No comments yet. Be the first to comment!
Join Discussion