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Determine the thevenin’s voltage in the circuit shown below.(a) 18∠146.31⁰(b) 18∠-146.31⁰(c) 19∠146.31⁰(d) 19∠-146.31⁰I got this question in an online interview.This question is from Thevenin’s Theorem in division Steady State AC Analysis of Network Theory

Answer»

The correct OPTION is (a) 18∠146.31⁰

The best I can explain: The voltage ACROSS (-j4) Ω RESISTOR is = (5∠90^o)/((2+j2)) (-j4) = 7.07∠-45^o V. The voltage across ‘AB’ = -10∠0^o+5∠90^o-7.07∠-45^o=18∠146.31^o V.



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