Ohm's Law Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional...
Ohm's Law
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to the resistance of the conductor. In other words, I = V/R, where I is current, V is voltage, and R is resistance.
Resistivity
Resistivity is a measure of how much opposition a conductor offers to the flow of electric current. It is defined as the resistance of a conductor to the flow of electric current. Resistivity is measured in ohms (Ω).
Temperature Dependence
The resistance of a conductor also depends on its temperature. This is because the temperature of a conductor affects the movement of charge carriers, which in turn affects the conductivity of the conductor. In general, the resistance of a conductor increases with increasing temperature