Capacitors in parallel and in series

Click For Summary
SUMMARY

To achieve a capacitance of 35nF with a voltage tolerance of 30V, one capacitor with a capacitance of 35nF and a voltage rating of at least 30V is required. Connecting capacitors in parallel allows for maintaining the same capacitance while increasing the voltage tolerance. The original capacitor, rated for a maximum of 10V, cannot be used under 30V conditions without risking failure. Therefore, the solution is to utilize a single capacitor rated for the desired voltage.

PREREQUISITES
  • Understanding of capacitor ratings and tolerances
  • Knowledge of series and parallel capacitor connections
  • Familiarity with basic electrical principles, including charge and capacitance
  • Ability to interpret capacitor specifications and requirements
NEXT STEPS
  • Research the differences between series and parallel capacitor configurations
  • Learn about capacitor voltage ratings and their implications in circuit design
  • Explore how to calculate total capacitance in parallel and series connections
  • Investigate capacitor selection criteria for specific voltage and capacitance needs
USEFUL FOR

Electronics students, circuit designers, and hobbyists looking to understand capacitor configurations and their impact on voltage tolerance and capacitance in electrical circuits.

chopticks
Messages
8
Reaction score
0
The problem: A capacitor has the capacitance 35nF, the tolerance is max 10V. You have to put 30V over the capacitor . How many capacitors of same kind do you need if you want to achieve same C(35nF) that tolerate 30V?

I have translated it from swedish to english, sorry if my english isn't so good, I hope you understand the though.

Hypothesis: Has it something to do with the connection, serial or parallel? I think that the charge Q should be the same for the new connection therefore we should use parallel connection. Am I wrong?
 
Last edited:
Physics news on Phys.org
Answer: You will need 1 capacitor with a capacitance of 35nF and a tolerance of 30V to achieve the same capacitance and voltage tolerance. The capacitors must be connected in parallel in order to achieve this.
 

Similar threads

Why Do Capacitors Behave Differently in Series and Parallel Configurations?
  • · Replies 20 ·
Replies
20
Views
2K
Two-layer dielectric, four-capacitor model vs three-capacitor model
  • · Replies 5 ·
Replies
5
Views
1K
Why Capacitors in Parallels vs. Series: Coaxial Capacitor Case
  • · Replies 2 ·
Replies
2
Views
2K
Questions about a capacitor with 4 parallel plates
  • · Replies 14 ·
Replies
14
Views
2K
Why can we model spherical capacitor with two dielectrics as two capacitors in series?
  • · Replies 4 ·
Replies
4
Views
2K
Charge on a grounded conducting sphere in a uniform electric field, after ungrounding and movement
  • · Replies 1 ·
Replies
1
Views
2K
Comparing energy lost by the battery & energy gained by the capacitor.
  • · Replies 5 ·
Replies
5
Views
2K
A disconnected capacitor with two dielectrics in parallel
  • · Replies 8 ·
Replies
8
Views
2K
Finding parallel or in-series resistors
  • · Replies 3 ·
Replies
3
Views
900
Capacitance of a parallel plate capacitor with a metal plate kept inside
  • · Replies 11 ·
Replies
11
Views
3K