AIIMS 2002 Physics Capacitors in Series and Parallel MCQ Question

Capacitance of capacitors C1, C3, C4, C5 = 4 μF each and capacitance of capacitor C2 = 10 μF. If a battery is applied across af and B, the points b and c will be at the same potential (since C1 = C4 = C3 = C5 = 4 μF). Therefore no charge flows through C2. We have the capacitors C1 and C5 in series. Therefore their equivalent capacitance, C'' = C1×C5 / C1+C5 = 4×4 / 4+4 = 2 μF. Similarly, C4 and C3 are in series. Therefore their equivalent capacitance, C'' = C3×C4 / C3+C4 = 4×4 / 4+4 = 2 μF.