Resistor

Definition

A resistor is an electronic component that restricts or limits the flow of electric current in a circuit. It is used to control the amount of current flowing through other components.

Related terms

Ohm's Law: Ohm's Law states that there is a direct relationship between voltage (V), current (I), and resistance (R) in an electrical circuit - V = I * R.

Capacitor: Unlike resistors that restrict current flow, capacitors store and release electrical energy over time.

Variable Resistor: Also known as rheostat or potentiometer, it is a resistor whose resistance value can be adjusted manually.