Why does width of wire affect resistance

Create a free Team What is Teams? Learn more. Why does the thickness of a wire affect resistance? Ask Question. Asked 8 years, 2 months ago. Active 7 years, 1 month ago. Viewed 4k times. So after a certain thickness shouldn't the thickness stop mattering? Improve this question. Add a comment. Active Oldest Votes. Therefore at high temperatures the resistance of an insulator can fall, and in some insulating materials, quite dramatically.

Different materials within either group have different temperature coefficients. Materials chosen for the construction of the resistors used in electronic circuits are carefully selected conductors that have a very low positive temperatur coefficient.

In use, resistors made from such materials will have only very slight increases in resistivity, and therefore their resistance. Using such materials for the manufacture of resistors creates components whose value changes only slightly over a given range of temperature. Hons All rights reserved. Revision Learn about Electronics - Circuits and Resistors. Essay Example. Related Essays. A limited time offer! Save Time On Research and Writing.

Get My Paper. This means that resistance takes a greater distance to stop the flow rate and that resistance overall is lessened. The wire material is also an important factor to consider, as it can affect the wire length that can be used on a project. Highly conductive materials like silver and copper offer the least amount of resistance to the flow of electrons compared to a highly resistant material like rubber.