Determine the angle by which v1 leads i1 if v1 = 10 cos (10t 45) and i1 is equal to (a)

Chapter 10, Problem 3

(choose chapter or problem)

Determine the angle by which \(v_1\) leads \(i_1\) if \(v_1 = 10\ \cos\ (10t - 45^{\circ})\) and \(i_1\) is equal to (a) \(5\ cos\ 10t\); (b) \(5\ \cos\ (10t - 80^{\circ})\); (c) \(5\ \cos\ (10t - 40^{\circ})\); (d) \(5\ \cos\ (10t + 40^{\circ})\); (e) \(5\ \sin\ (10t - 19^{\circ})\).

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