Can Connecting Positive Plate of C1 to Negative Plate of C2 Cause an Explosion?

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Homework Help Overview

The discussion revolves around the connection of two capacitors, C1 and C2, with specified charges, and whether connecting their plates in a certain manner could lead to an explosion. The subject area includes concepts of capacitor behavior, charge distribution, and circuit configurations.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants explore the implications of connecting the positive plate of one capacitor to the negative plate of another. Questions arise regarding the arrangement of the capacitors, whether they are in series or parallel, and the resulting voltage and charge distribution.

Discussion Status

The discussion is active, with participants offering insights into the behavior of capacitors in different configurations. Some guidance has been provided regarding the conditions under which the voltages across the capacitors may equalize after charge rearrangement, though multiple interpretations of the circuit setup are being explored.

Contextual Notes

There are references to previous homework assignments involving calculations of final charge after rearrangement, indicating a potential constraint on the discussion's focus. The participants also mention assumptions about the arrangement of the capacitors and the effects of their connections.

ABC2233
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Homework Statement


Q1= 200 C
Q2=400 C

Homework Equations



Qtotal= Q1+Q2 ?

The Attempt at a Solution



Qtotal=Q1+Q2=400-200=200 C
Is it possible to connect the positive plate of C1 to the negative plate of C2 and vice versa without the capacitor getting explode ?
 
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Is it possible to connect the positive plate of C1 to the negative plate of C2 and vice versa without the capacitor getting explode ?
Yes.
 
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Thanks.
One other question if I may ask, is those capacitors connected in parallel ?
Can we say that V1=V2 ?
 
If capacitors are in parallel with each other, then the voltage across one capacitor is also across the other one.
 
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ZxgZ7vO.png

so as in this picture, it's possible and it's considered parallel, right?
 
I'd say they were in series because a current will flow around the loop - forming a circuit.
But you wouldn't normally be trying to find equivalent capacitances in that situation.

In a steady-state those capacitors would be considered to be in parallel with each other.
But that would be after the charges have rearranged. Before that, the distinction does not mean much.
 
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Right.
We had a homework before, we had to calculate the final charge after the rearrangement.

As I have been told, we calculate the final charge after the rearrangement then consider it to be parallel, Right ?
 
ABC2233 said:
We had a homework before, we had to calculate the final charge after the rearrangement.

As I have been told, we calculate the final charge after the rearrangement then consider it to be parallel, Right ?

It is right.

ehild
 
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Thanks a lot Simon Bridge & ehild.
 
  • #10
As I have been told, we calculate the final charge after the rearrangement then consider it to be parallel, Right ?
That's right.
In the configuration shown in the diagram, the voltages across the capacitors are not the same, because of the way the charges are arranged. After the charges have rearranged, the voltages will be the same.
 
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  • #11
Simon Bridge said:
That's right.
In the configuration shown in the diagram, the voltages across the capacitors are not the same, because of the way the charges are arranged. After the charges have rearranged, the voltages will be the same.
Thanks.
 

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