8 Major Difference Between Resistance And Impedance (With Comparison Chart)
What Is Electrical Resistance? Electrical resistance is the hindrance to the flow of charge through an electric circuit. Resistance is represented by the uppercase letter R. The standard unit of resistance is the ohm, sometimes written as a word and sometimes symbolized by the uppercase Greek letter omega.
In general, when the applied voltage is held constant, the current in a direct-current (DC) electrical circuit is inversely proportional to the resistance.