Question

What are the factors that affect Resistance and Resistivity Of a conductor?​

Answer 1

The resistance of the conductor depends on the following factors:

• The temperature of the conductor.
• The cross-sectional area of the conductor.
• Length of the conductor.
• Nature of the material of the conductor.

Answer 2

The resistance of the conductor depends on the following factors:

• The temperature of the conductor

• The cross-sectional area of the conductor

• Length of the conductor

• Nature of the material of the conductor

Electrical resistance is directly proportional to the length (L) of the conductor and inversely proportional to the cross-sectional area (A). It is given by the following relation.

R=ρl/A  

where ρ is the resistivity of the material (measured in Ωm, ohm meter)  

Resistivity is a qualitative measurement of a material’s ability to resist flowing electric current. Obviously, insulators will have a higher value of resistivity than of conductors.