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Factors affecting the resistance of a conductor
There are three main factors that affect the resistance of a conductor:
a) Temperature
Increase in temperature enhances the vibration of the atoms and thus higher resistance to the flow of current.
b) Length of the conductor L
The resistance of a uniform conductor increases with increase in length.
c) Cross section area A
A conductor having a wider cross section area has more free electrons per unit length compared to a thin one.
Hence a thicker material has a better conductivity than a thinner one. Generally, resistance varies inversely as the cross section area of the material.
chrispohmomanyi answered the question on October 9, 2017 at 11:37
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