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I understand the core concepts of capacitors, however the idea of the switch isn't introduced very...

I understand the core concepts of

I understand the core concepts of



I understand the core concepts of capacitors, however the idea of the switch isn't introduced very well in the book. I'm not sure how to approach this problem: if the switch isn't connected then the capacitors behave like they are in series, but I don't quite understand how there is a potential across an open circuit point "d " to "c".

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Answer #1

When switch is open i.e. not connected then no current will be passed along that path.

So, In Series Equivalent Capacitance is

  cal

Across capacitors voltage will be different but charges residing on the capacitor is same.

Hence at point d and c voltages are different depending on capacitor value beside that point.

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