Verified Solution • 2025–26 Session moderate

QPages 165-170: Q20: HC Verma: Concepts of Physics - Volume 2 Capacitors Pages 165-170: Q20 Solution: Each capacitor shown in figure has a capacitance of 5.0 �F. The …

⚠️ Common Exam Traps & Conceptual Pitfalls

Students often incorrectly assume that closing a switch always causes charge redistribution, failing to recognize that symmetric capacitor networks maintain equal potentials across the switch terminals, resulting in zero net charge flow.

Each capacitor shown in figure has a capacitance of 5.0 �F. The emf of the battery is 50 V. How much charge will flow through AB if the switch S is closed?

Step-by-Step Verified Solution

**Answer:** Charge flow = 0. **Step-by-Step Explanation:** When switch S is closed, the potential at the two points connected by the switch becomes equal. The capacitors are already at the same potential due to symmetry, so no charge flows. Standard: Charge flow = 0.

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