How much a device will oppose, or resist, both DC and AC current.
Represents the opposition that the circuit exhibits to the flow of sinusoidal current.
Fundamentals of Electric Circuits, 5th Edition by Charles K. Alexander and Matthew N. O. Sadiku
The total opposition to the flow of current in a sine-wave ac circuit.
Grob’s Basic Electronics, 11th Edition by Mitchel E. Schultz