OOO|---C5----|
OOO|OOOOOOOOO|
A----C1---C2---C3----B
OOOOOOOO|OOOOOOOOOO|
OOOOOOOO|----C4----|
The "C"s stand for capacitor.
The capacitance of C2 is 10 μF and others are 4 μF.
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The book contains neither the answer nor solution.
I tried to apply Kirchhoff's Loop Rule...