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Positive polarity capacitor discharging into a negative polarity capacitor

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jiyer

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I was wondering how the discharge current waveform across a resistance (say, 300 Ohms) would look, if a charged positive polarity capacitor is discharged across this resistance, in series with a charged negative polarity capacitor (of the same capacitance as the positive polarity one)? How would the current waveform look like, across the negative polarity capacitance? My guess is that the entire charge from the positive polarity capacitor is dumped through the negative polarity capacitance to the ground.

Here's how the circuit elements look like:
ground -> Charged Positive polarity capacitance -> 300 Ohms -> Charged negative polarity capacitance -> ground
 

If I understand the description correctly then you have 2 caps grounded at the + end and the - ends connected with the resistor.
Assuming both caps were equal potential then no current would want to flow, just the leakage would make the charge decay.
If you reversed one of the caps so that they were in series like batteries would be then the circuit is equivalent to 2 caps in series with a resistor accross them, the current waveform would be similar to just one cap shunted with a resistor, the only affect having the 2 caps is that the capacitance is reduced, according to the well known simple equation.
 
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    jiyer

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Thanks, so it looks like the capacitors behave like batteries. What if the positive polarity cap was charged fully and the negative polarity cap was not charged fully - then would it be correct to state that if the 2 caps are grounded at the + end and - ends connected with the resistor in between then current will flow from the positive polarity cap to the negative polarity cap through the resistor ?
 

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