Rankers Physics

Combination of Capacitors: Practice Problem & Solution

Calculate the charge on the second capacitor before and after switch in the circuit is closed : Combination of Capacitors diagram: Calculate the charge on the second capacitor before
CE/2, CE
0, 0
0, CE
CE, 0

Solution Explained:

To solve this problem, we apply the core principles of Combination of Capacitors. Understanding the underlying formula is key to arriving at the correct answer below:

When Switch is Open Equivalent Capacitance is Ceq=C/2

So, Charge on Both the capacitors in CE/2.

When Switch is Closed 1st Capacitor is short circuited .Now  Equivalent Capacitance is Ceq=C.

So, Charge on  the capacitors in CE.

 

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