One of the significant differences between the resistance and the resistivity of the substance is that the resistance impedes the flow of free electrons whereas the resistivity is the property of the material, defining the resistance of the material having distinct dimension. Resistance is a measure of the resistance of a device to an electric current being passed through it.
For an ohmic device, such as metal wire at room temperature, or a resistor, it is a constant given by Ohm's law. The opposition to the flow of charge traveling through a conductor is called electrical resistance. Resistivity can be defined as the resistance of a meter cube of wire. It is the property of the material of which the wire is made. The resistance and resistivity of a substance depend upon the temperature.
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