A current of frequency (50)/π Hz is passing through an A.C. circuit having a series combination of resistance R = 100 Ω and inductor L = √3 H. The phase difference between the voltage and current is .

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(1) 60°. Given: f = (50)/π Hz, R = 100 Ω, L = √3 H. X_L = 2π fL = 2π×(50)/π×√3 = 100√3 Ω ≈ 173 Ω. Idea: in an L-R circuit the voltage leads the current by φ with tan φ = (X_L)/R. tan φ = (100√3)/(100) = √3, so φ = 60°.

A current of frequency (50)/π Hz is passing through an A.C. circuit having a series combination of resistance R = 100 Ω and inductor L = √3 H. The phase difference between the voltage and current is ______.

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