Question

At resonce the phase angle between voltage across inductor and current in a series LCR circuit connected to an AC dource is

Answer 1

In an L-C-R (Inductor-Capacitor-Resistor) circuit, the phasor diagram is drawn taking the inductor, capacitor and the resistor in series.

Clearly, there is no phase difference between the voltage across the resistor and current flowing through the circuit and it follows simply the equation V=iR (V and i in RMS values)

There is a phase difference between the voltage across the resistor and the resultant voltage, which is equal to θ = 

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