Phase Angle: the Phase Angle of an LRC Series Circuit

question 39

Multiple Choice

Phase angle: The phase angle of an LRC series circuit with an inductive reactance of 200 Ω and a capacitive reactance of 100 Ω is 40.0°. What is the value of the resistor in this circuit?

• A) 100 Ω
• B) 119 Ω
• C) 156 Ω
• D) 200 Ω
• E) 265 Ω

---

Definitions:

R

Symbol commonly used to denote resistance in electrical circuits, measured in ohms (Ω).

Power Factor

The ratio of the real power flowing to the load to the apparent power in the circuit, indicating how effectively electrical power is converted into useful work output.

RC Parallel Circuit

An electrical circuit composed of resistors (R) and capacitors (C) connected in parallel, affecting the total impedance seen by an alternating current (AC) source.

R

A symbol commonly used to represent resistance in electrical circuits, measured in ohms (Ω).