Capacitors connected in parallel

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Homework Help Overview

The discussion revolves around capacitors connected in parallel, specifically focusing on the relationship between the charge on individual capacitors and the equivalent capacitor when a potential difference is applied.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are exploring the definition of capacitance and its implications for charge distribution in parallel configurations. Questions about the correct interpretation of charge relationships are raised, particularly regarding the equivalent charge of the combination.

Discussion Status

Some participants have provided hints and guidance, encouraging others to consider fundamental definitions and principles such as charge conservation. Multiple interpretations of the problem are being discussed without reaching a consensus.

Contextual Notes

There is some confusion regarding the wording of the problem, which may affect participants' understanding of the relationships between the charges on the capacitors.

nautica
Capacitor C1 and C2 are connected in parallel and a potential difference is applied to the combination. If the capacitor that is equilvalent to the combination has the same potential difference, then the charge on the equivalent capacitor is the same as?

a) the charge on C1
b) the sum of the charges on C1 and C2
c) the difference of the charges on C1 and C2
d) the product of the charges on C1 and C2
e) none of above

I got lost in the wording on this one.

nautica
 
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Let's see if I can walk you through this.

Give me an equation that expresses the definition of capacitance...

Next, what is the "formula" for CEQ when several capacitors C1, C2, C3 ... are connected in parallel?
 
Last edited:
The sum of the charges on C1 and C2

thanks
nautica
 
First ask yourself, "what is the definition of capacitance?" That should probably give you a huge hint. The next hint would be charge conservation.
 

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