Which of the following theorems is the dual of Norton’s theorem? 

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SSC JE Electrical 4 Dec 2023 Official Paper II
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  1. Thevenin’s theorem 
  2. Reciprocity theorem 
  3. Maximum power transfer theorem 
  4. Superposition theorem  

Answer (Detailed Solution Below)

Option 1 : Thevenin’s theorem 
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The correct option is 1

Concept:

Thevenin and Norton Theorems are dual to each other and apply to linear circuits.

Thevenin’s equivalent circuit is as shown:

F1 S.B Madhu 24.12.19 D 6

Vth = Open circuit voltage

Rth = Equivalent resistance at the terminals when the independent sources are turned off.

Norton’s equivalent circuit is as shown:

SSC JE Electrical 7

Thevenin and Norton's equivalent circuits are related by source transformation:

\({I_N} = \frac{{{V_{th}}}}{{{R_{th}}}}\)

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