Resistance (R)

Definition

Resistance is a measure of how much an object or material opposes the flow of electric current. It determines how easily or difficultly electrons can move through a circuit.

Related terms

Ohm's Law: It states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance.

Conductivity: It refers to the ability of a material to conduct electricity. Materials with high conductivity have low resistance, while materials with low conductivity have high resistance.

Resistivity: It is a property of a material that quantifies its inherent resistance. Resistivity depends on both the type of material and its dimensions.