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.