1. Cross-sectional area: The resistance of a wire is inversely proportional to its cross-sectional area. This means that a wire with a larger cross-sectional area will have a lower resistance than a wire with a smaller cross-sectional area. For example, a thick copper wire will have a lower resistance than a thin copper wire.
2. Temperature: The resistance of a wire also increases with temperature. This means that a wire that is hot will have a higher resistance than a wire that is cold. For example, a copper wire that is heated up will have a higher resistance than a copper wire that is at room temperature.
So, if you have two wires of the same length made from the same material, but one wire has a larger cross-sectional area or is at a higher temperature, then that wire will have a lower resistance.
