Two condensers, one of capacity C and the other of capacity C/2 are connected to a V-volt battery, as shown. The work done in charging fully both the condensers is:
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Question

Two condensers, one of capacity C and the other of capacity C/2 are connected to a V-volt battery, as shown. The work done in charging fully both the condensers is:

G1 Physics · Accepted Answer

Step 1: The capacitors are connected in parallel across the same battery V. Step 2: C(eq) = C + C/2 = 3C/2. Step 3: Energy stored in both capacitors U = ½C(eq)V² = ¾CV².