Grounded Circuit Homework: Charge Conservation?

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SUMMARY

The discussion confirms that in a grounded circuit composed solely of capacitors and batteries, charge conservation holds true. Specifically, if the capacitors are initially uncharged, the total charge across all capacitors, represented by the equation ∑_{i=1}^n Q_i=0, remains valid at any time. This is contingent upon understanding that "charge on a capacitor" refers to the sum of charges on both plates. Furthermore, in a series configuration of capacitors, knowing the charge on one plate allows for the determination of charges on all plates within the circuit.

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  • Basic principles of electrical charge conservation
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Homework Statement


Suppose you have a grounded circuit composed only of capacitors and batteries. Will there be conservation of charge, i.e., if the capacitors are initially uncharged, at any time after it verifies that:

[tex]\sum_{i=1}^n Q_i=0[/tex], where Q_i is the charge on the ith capacitor.
 
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What do you mean by a grounded circuit?
 
go quantum! said:

Homework Statement


Suppose you have a grounded circuit composed only of capacitors and batteries. Will there be conservation of charge, i.e., if the capacitors are initially uncharged, at any time after it verifies that:

[tex]\sum_{i=1}^n Q_i=0[/tex], where Q_i is the charge on the ith capacitor.

Yes, as long as by "charge on a capacitor" you mean the sum of the charges on both plates of the capacitor.
As a special case, consider a row of capacitors in series. If you know the charge on one plate of any of the capacitors at a given time, you then know the charge on all the plates of all the capacitors at that time.
 

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