Question

What are the three important factors on which resistance in wire depends and how

Answer 1

the three important factor on which resistance of wire depends on is :-

1:- length of wire 
it is directly proportional to length, if length is increased than resistance increased
2:-the cross-section {thickness} of wire
it is inversaly proportional to thickness, if thickness increases resistance decreases, and when thickness decrease resistance increase
3:- resistivity of material by which wire is made

Answer 2

There are 3 factor s which affect the resistance of a wire

Nature of material ,it means electron density of any material by which we are going to make a wire.Dimension ( length,area of cross section )Temperature - in case of metal , temperature is directly proportinal to the resistance. But in case of semiconductor , temperature is inversrly proportinal to the resistance.

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