GK Question

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Which theorem simplifies complex linear circuits to a single voltage source and series resistance?

  1. Kirchhoff's Law
  2. Thevenin's Theorem
  3. Norton's Theorem
  4. Both B and C

Answer: Both B and C

Thevenin's Theorem: any linear circuit = voltage source (Vth) + series resistance (Rth). Norton's Theorem: equivalent = current source (In) + parallel resistance (Rn). They are duals; conversion: Vth = In × Rn. Essential for circuit analysis, load matching, and troubleshooting. Applicable to AC circuits using impedance.

Topic Electronics Basics
Exam Relevance Railway JE, SSC JE, Banking
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