Phasor Diagram

Question

Answer 1

Observe the circuit:

In a series RLC circuit contains a resistor, an inductor and a capacitor.

The source voltage is the phasor sum made up of three components .

If , then the overall circuit reactance is inductive giving lagging phase angle.

The instantaneous voltage across a pure resistor, is in-phase with current.

The instantaneous voltage across a pure inductor,   leads the current by .

The instantaneous voltage across a pure resistor, lags the current by .

Phasor diagram for the individual voltage vectors:

For resistor:

For inductor:

For capacitor:

Phasor diagram of Resultant: