Impedance

Impedance is a video in the Circuit Analysis category/AC Circuit Analysis sub-category of Khan Academy's Electrical Engineering course.
The ratio of a sinusoidal voltage to a sinusoidal current is called "impedance". This is a generalization of Ohm's Law for resistors. We derive the impedance of a resistor, inductor, and capacitor. The inductor and capacitor impedance includes a term for frequency, so the impedance of these components depends on frequency.
Category:AC Circuit Analysis