Capacitors of 3 μF and 6 μF are connected in series across a 90 V supply. The potential difference across the 3 μF capacitor is
A. 60 V
B. 30 V
C. 45 V
D. 90 V
A. 60 V
B. 30 V
C. 45 V
D. 90 V
Best answer
Answer: A. 60 V
\(C_s=2\) μF, \(Q=180\) μC, \(V_3=\frac{180}{3}=60\) V.
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