Low power factor is usually not due to___________?
Correct answer: D. incandescent lamp
- A. arc lamps
- B. induction motors
- C. fluorescent tubes
- D. incandescent lamp
Explanation
An incandescent lamp is mainly a resistive load, so its current and voltage are nearly in phase and its power factor is close to unity. Arc lamps, induction motors, and fluorescent lamps generally introduce reactive effects and lower power factor.
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