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Determine the source voltage if voltage across resistance is 70V and the voltage across inductor is 20V as shown in the figure.(a) 71(b) 72(c) 73(d) 74I had been asked this question in an interview for internship.I need to ask this question from Series Circuits in section Complex Impedence of Network Theory

Answer»

Right choice is (C) 73

Explanation: If voltage ACROSS resistance is 70V and the voltage across inductor is 20V, SOURCE voltage Vs=√(70^2+20^2) = 72.8≅73V.



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