Capacitance, Potential difference

AI Thread Summary
To find the potential difference Va-Vb between points a and b, it is essential to understand the charge distribution on the capacitor plates, where each left plate has a positive charge and each right plate has a negative charge. Initially, if the capacitors are uncharged, the net charge in the circuit section to the right of the capacitors is zero. Applying Kirchhoff's Voltage Law (KVL) can help analyze the circuit by examining the voltage across each capacitor through the three loops. By assuming point a as ground (0V), the potential at point b can be calculated. This approach will lead to the determination of the potential difference between the two points.
lavankohsa
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Homework Statement


Find the potential difference Va-Vb between points a and b.

capacitance.jpg


Homework Equations

The Attempt at a Solution



Each capacitors left plate will have difference amount of positive charge and right plate will have negative charge. After that i don't know how to proceed.
 
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lavankohsa said:

Homework Statement


Find the potential difference Va-Vb between points a and b.

capacitance.jpg


Homework Equations

The Attempt at a Solution



Each capacitors left plate will have difference amount of positive charge and right plate will have negative charge. After that i don't know how to proceed.
If the capacitors are uncharged prior to being placed in the circuit, then the net charge in the part of the circuit right of the capacitors is zero initially.

I don't see how all of the right plates for all of the capacitors can be negative.
 
Last edited:
lavankohsa said:

Homework Statement


Find the potential difference Va-Vb between points a and b.

capacitance.jpg


Homework Equations

The Attempt at a Solution



Each capacitors left plate will have difference amount of positive charge and right plate will have negative charge. After that i don't know how to proceed.
If you are familiar with KVL, you can use it for the 3 loops to get the voltage across each capacitor.. Just find the potential of point b, assuming a as ground(0V).
 
Use KVL
 
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