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Answer: 2. 2C

Key idea: wires joining the two sides short-circuit a capacitor, and the rest become parallel.

  1. The right-hand vertical wire joins the top and bottom wires into one node, so the middle capacitor has both plates at the same potential and carries no charge (it is shorted).
  2. The left vertical wire joins the left ends of the two outer capacitors into one node. So the two capacitors C each lie between the same two nodes: they are in parallel.

\(C_{eq}=C+C=2C\). Option 2.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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