In a series LCR circuit, Vᵣ = 40 V, Vʟ = 100 V and Vᴄ = 70 V. Which statement correctly describes the phase relation?
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Question

In a series LCR circuit, Vᵣ = 40 V, Vʟ = 100 V and Vᴄ = 70 V. Which statement correctly describes the phase relation?

G1 Physics · Accepted Answer

tanφ = [Vʟ − Vᴄ]/Vᵣ = (100 − 70)/40 = 3/4. Since Vʟ > Vᴄ, the circuit is inductive and current lags the applied voltage.