First slide

Phasors and Phasor Diagrams

Question

The phasor diagram of the circuit containing an alternating source is as shown in the figure. Where Q represents rms value of current and P represents rms value of supply voltage. Then the circuit may contain

Moderate

A

a resistor and a capacitor connected in series
B

a resistor and an inductor connected in series
C

a capacitor and an inductor connected in parallel.
D

a capacitor an inductor and a resistor connected in series.

Solution

For the circuit shown in figure, the phasor diagram is shown in the figure below. So the net current $Q = I_{C} - I_{L}$ .

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