Question
Two capacitors of capacitance 6 µF and 3 µF are
connected in series across a battery of constant voltage. The charges stored on the two capacitors in this setup are denoted as Q 1 and Q 2, respectively. Now, both capacitors are disconnected and separately connected across the same battery (one at a time). Let the new charges stored on the 6 µF and 3 µF capacitors be Q 3 and Q 4, respectively. Which of the following is the correct relation?Solution
Case 1: Capacitors in Series When capacitors are connected in series, they have the same charge. Let the equivalent capacitance of the series combination be CS 
Assuming V is a positive value, we can establish the following inequality: 6V>3V>2V Therefore, Q3> Q4> Q1 = Q2
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