Which linear circuit can be used as an equivalent circuit for a single voltage source and a series resistance ? 

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  1. Nortan’s equivalent 
  2. Thevenin equivalent circuit 
  3. Maximum power equivalent circuit 
  4. Reciprocal power circuit 

Answer (Detailed Solution Below)

Option 2 : Thevenin equivalent circuit 
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Thevenin Theorem

Thevenin’s theorem states that it is possible to simplify any linear circuit, irrespective of how complex it is, to an equivalent circuit with a single voltage source and a series resistance.

The voltage source is known as the Thevenin voltage and the series resistance is known as the Thevenin resistance.

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Norton Theorem

Norton's theorem states that it is possible to simplify any linear circuit, irrespective of how complex it is, to an equivalent circuit with a single current source and a parallel resistance.

The current source is known as the Norton current and the parallel resistance is known as the Norton resistance.

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