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PhysicsNEET 2024Capacitors: series, parallel, energy stored

Electrostatic Potential and Capacitance

In the following circuit, the equivalent capacitance between terminal A and terminal B is:

Question 25 as printed in the NEET 2024 booklet

  1. A.1μF1 \mu{}F
  2. B.0.5μF0.5 \mu{}F
  3. C.4μF4 \mu{}F
  4. D.2μF2 \mu{}F✓

Solution

The upper and lower branches each have two 2μF2 \mu{}F capacitors in series, so the midpoints of both sit at the same potential; the central 2μF2 \mu{}F carries no charge and can be removed. Each branch is 1μF1 \mu{}F, and the two in parallel give 2μF2 \mu{}F.

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