When two capacitors are connected in series and connected across 4kV line, the energy stored in the system is 8J. The same capacitors, if connected in parallel across the same line, the energy stored is 36J. Find the individual capacitance ?
1 Answer
Feb 20, 2018
Let,the individual capacitance of the two capacitors were,
So, in series,equivalent capacitance will be
And,as we know,energy stored on connecting a capacitor of capacitance
So,from the given information we can write,
Again,in parallel,equivalent capacitance will be
So,we can say,this time energy stored =
Given,
So,solving both the equations we get,