A 3.0-$\mu$F capacitor charged to 40 V and a 5.0-$\mu$F capacitor charged to 18 V are connected to each other,with the positive plate of each connected to the negative plate of the other.What is the final charge on the 3.0-$\mu$F capacitor?
A)11 $\mu$C
B)15 $\mu$C
C)19 $\mu$C
D)26 $\mu$C
E)79$\mu$C

Question

Quizplus · Accepted Answer

The final charge on the 3.0-F capacitor is 11 μC. This is because the total charge on the two capacitors is conserved, and the final voltage across the two capacitors is the same. Therefore, the charge on the 3.0-F capacitor must be equal to the total charge minus the charge on the 5.0-F capacitor.

A 30- μ\muμ F Capacitor Charged to 40 V and a 5

A 30- $\mu$ F Capacitor Charged to 40 V and a 5