What are the factors affecting the resistance of a material?

  1. The value of resistance of a conductor depends on temperature for constant potential difference.
  2. Resistance of a conductor depends on the material of the conductor.
  3. Resistance of a conductor is directly proportional to its length i.e., R $\propto$ l.
  4. Resistance of a conductor is inversely proportional to the area of cross-section
    of the material, i.e., R $\propto$ l/A