0

Guest

Courses New

for to wires of same lenght and differentradii, does the resistance of wire change?

for to wires of same lenght and differentradii, does the resistance of wire change?
 

Grade:12th pass

3 Answers

Arun
25750 Points
6 years ago
The resistance will be different because of radii difference .As the resistance is the difficulty faced in electrons`s flow and it`s inversely proportional to the diameter or radii. The more wider the wire is the less will be the collision of electron with the atoms of the wire so the resistance will also be less.On the contrary, the less wider wire will result in more resistance to the flow of electrons`s.
Unique Aasif
39 Points
6 years ago
Resistance is inversely proportional to area ,if radius decreases then resistance increases.R is proportional to length and inversely proportional to area[radius].
Sanju
106 Points
6 years ago
We have, Resistance = Resistivity * (length of wire/area of wire’s cross section)
Area = pi* r2
If we alter the radius of the wire, keeping the wire material and length of the wire unchanged, its resistance will change. Because, resistance of the wire is inversely proportional to its area of cross section or wire radius.
Higher the area of cross section or wire radius lower wil be its resistance and vice-versa...

Think You Can Provide A Better Answer ?

Other Related Questions on General Physics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More