On what factor resistance of the substance depends (Laws of resistance)?

On what factor resistance of the substance depends (Laws of resistance)?
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1 Answer

Answer :

a. The resistance of the conductor is directly proportional to the length of the conductor.

b. The resistance of the conductor is inversely proportional to the cross-section of the conductor.

c. The resistance of the conductor depends on the nature of the material by which it is made. That is specific resistance of the material.

d. The resistance of the conductor depends on its temperature.


The formula to find the resistance of the substance is below. 

image

 Where ρ is the constant for the material called its specific resistance or resistivity.  
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