In the shown circuit, the charge on the 6 μF capacitor is 10 μC. Find the charge on the 4 μF capacitor.
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Question

In the shown circuit, the charge on the 6 μF capacitor is 10 μC. Find the charge on the 4 μF capacitor.

G1 Physics · Accepted Answer

The 3 μF and 6 μF capacitors are in series, so both carry 10 μC. Their voltage sum fixes the voltage across the parallel 4 μF branch. This voltage is 10 V, so Q₄ = 4 μF × 10 V = 40 μC. Correct answer: A.