1.

The Norton’s equivalent impedance in the circuit shown below.(a) 4.53∠9.92⁰(b) 4.53∠-9.92⁰(c) 5.53∠9.92⁰(d) 5.53∠-9.92⁰The question was posed to me by my school principal while I was bunking the class.My question is from Norton’s Theorem in portion Steady State AC Analysis of Network Theory

Answer»

The correct choice is (a) 4.53∠9.92⁰

The best explanation: The NORTON’s EQUIVALENT impedance is Z = (3+j4)(4-j5)/((3+j4)+(4-j5))=4.53∠9.92^oΩ. The impedance between the POINTS a and b with the source REPLACED by a short circuit is Norton’s equivalent impedance.



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