A number of identical condensers are first connected in parallel and then in series. The equivalent capacitance are found to be in the ratio 9:1. The number of condensers used is :
9
81
3
100
A
9
B
3
C
81
D
100
Open in App
Solution
Verified by Toppr
In series 1Ceff=1C+1C+1C+upto n terms Ceff=Cn
In parallel Ceff=C+C+ upto n terms
Was this answer helpful?
4
Similar Questions
Q1
A number of identical condensers are first connected in parallel and then in series. The equivalent capacitance are found to be in the ratio 9:1. The number of condensers used is :
View Solution
Q2
Three condenser of capacity 2μF,4μF and 8μF respectively, are first connected in series and then connected in parallel. The ratio of equivalent capacitances in two cases will be :
View Solution
Q3
Three capacitors 3μF,9F and 18μF are connected first in series and then in parallel. The ratio of the equivalent capacitance in two cases is :
View Solution
Q4
The two condensers of capacitance's 4μF and 6μF are connected in parallel. This combination is now connected in series to a third condenser. If the resultant capacitance becomes 313 up, the capacitance of the third condenser is:
View Solution
Q5
Two condensers each of capacitance 2μF are connected in parallel and this combination is connected in series with a 12μF capacitor. The resultant capacity of the system will be: