Impedance is a measure of opposition that a circuit presents to the flow of alternating current (AC), combining resistance, inductive reactance, and capacitive reactance into a single complex quantity. It is crucial in AC circuit analysis and is represented as a complex number with both magnitude and phase angle, affecting how voltage and current are related in the system.
Resistance is the opposition that a substance offers to the flow of electric current, measured in ohms. It is a fundamental concept in physics and engineering, affecting how electrical circuits function and influencing the design of electronic components.
A Passive Power Filter is an electrical device used to reduce harmonic distortion and improve power quality in AC power systems. It operates by attenuating unwanted harmonics through passive components like resistors, inductors, and capacitors, ensuring cleaner and more efficient electricity delivery.