The electrical resistance of a wire would be expected to be greater for a longer wire, less for a wire of larger cross sectional area, and would be expected to depend upon the material out of which the wire is made (resistivity) experimentally, the dependence upon these properties is a straightforward one for a wide range of conditions, and. Relationship between wire diameter and resistance. This electronics video tutorial focuses on the american wire gauge - awg it discusses the relationship between wire size, amperage, diameter in mm, and resistance per unit length in milli-ohms.
relationship between wire diameter and resistance
The longer the wire, the more resistance that there will be there is a direct relationship between the amount of resistance encountered by charge and the length of wire it must traverse after all, if resistance occurs as the result of collisions between charge carriers and the atoms of the wire, then there is likely to be more collisions in a. The nature of a material is not the only factor in resistance and conductance, however: it also depends on the size and shape of an object because these properties are extensive rather than intensive. for example, a wire's resistance is higher if it is long and thin, and lower if it is short and thick.. Wire sizes and resistance the resistance of a length of wire is described by r =
