alleryStart learning →NORTON'S THEOREM gives an equivalent network as
Aa current source in parallel with a resistor
Ba voltage source in series with a resistor
Ca current source in series with a resistor
Dtwo voltage sources
Answer & Solution
Correct answer: A. a current source in parallel with a resistor
1. NORTON: any linear two-terminal network is equivalent to a current source $I_N$ in parallel with a resistor $R_N$.
2. $I_N$ = short-circuit current at the terminals.
3. $R_N = R_{TH}$ (same as Thevenin resistance).
4. Convertibility: $V_{TH} = I_N \cdot R_N$. Norton and Thevenin equivalents are interchangeable.
5. Option B is Thevenin. Other options have wrong configurations.
_Source: Tony Kuphaldt, "Lessons in Electric Circuits — DC", Vol I, Ch 10 (Norton)._
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