Calculating Energy in Series & Parallel Capacitors

AI Thread Summary
The discussion focuses on calculating energy in capacitors, specifically in series and parallel configurations. For a single capacitor, the energy formula is given by 1/2 CV², where C is capacitance and V is voltage. In series, capacitors share the same charge, while in parallel, they share the same voltage, which influences the choice of formulas used. It is emphasized that finding the equivalent circuit is crucial for accurate calculations. Understanding these principles is essential for effectively determining energy in capacitor arrangements.
lcp1992
Messages
12
Reaction score
0
Can anybody tell me which are the formulas to find energy in capacitors in series and in parallel?
 
Physics news on Phys.org
Lest us start with a single capacitor.

What is the formula for its energy?
 
The best way is to find the equivalent circuit and then use \frac{1}{2}CV2
 
If the capacitors are in series (resp. in parallel) then their charge (resp. voltage) is the same for each and so it would be better to use a formula having charge (resp. voltage).
 

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »
Thread 'Trying to understand the logic behind adding vectors with an angle between them'

Thread 'Trying to understand the logic behind adding vectors with an angle between them'

My initial calculation was to subtract V1 from V2 to show that from the perspective of the second aircraft the first one is -300km/h. So i checked with ChatGPT and it said I cant just subtract them because I have an angle between them. So I dont understand the reasoning of it. Like why should a velocity be dependent on an angle? I was thinking about how it would look like if the planes where parallel to each other, and then how it look like if one is turning away and I dont see it. Since...
View full post »

Similar threads

Why Do Capacitors Behave Differently in Series and Parallel Configurations?
Replies
20
Views
2K
Why Capacitors in Parallels vs. Series: Coaxial Capacitor Case
Replies
2
Views
2K
Why can we model spherical capacitor with two dielectrics as two capacitors in series?
Replies
4
Views
2K
Spherical capacitor RC system -- determine steady state charges
Replies
6
Views
165
Calculating the voltage across capacitors and resistors with switches
Replies
2
Views
787
Questions about a capacitor with 4 parallel plates
Replies
14
Views
1K
Finding parallel or in-series resistors
Replies
3
Views
723
A disconnected capacitor with two dielectrics in parallel
Replies
8
Views
2K
How to determine if electrical components are connected in parallel or in series?
Replies
10
Views
989
What is the voltage across this capacitor, inductor and resistor?
Replies
9
Views
2K

Hot Threads

Recent Insights

Back
Top