James Caffrey

James Caffrey
James Caffrey

Stories by James Caffrey

Electrical ImpedanceWhat Lies Beneath

You all remember Ohm's law and the definition of electrical resistance as the ability of a circuit to resist the flow of electrical current. Although useful, Ohm's law applies to only one circuit element and assumes it to be an ideal resistor. Real-world circuit elements are more complex and exhibit resistive, capacitive, and inductive behavior that together define its impedance.

Electrical Impedance-What Lies Beneath

You all remember Ohm's law and the definition of electricalresistance as the ability of a circuit to resist the flow ofelectrical current. Although useful, Ohm's law applies to only onecircuit element and assumes it to be an ideal resistor. Real-worldcircuit elements are more complex and exhibit resistive,capacitive, and inductive behavior that together define itsimpedance.