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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.

Determine the source voltage if voltage across resistance is 70V and the voltage across inductor is 20V as shown in the figure. Correct Answer 73

If voltage across resistance is 70V and the voltage across inductor is 20V, source voltage Vs=√(702+202) = 72.8≅73V.

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