The electrical resistance of a metallic conductor is inversely proportional to its

Cross sectional area

Explanation:

Resistance of a metallic conductor is the measure of its opposition to the flow of electric current. Resistance is known to be directly proportional to the temperature which means as the temperature is increased, its resistance increases too and vice versa.

The resistance however has an inverse relationship with the cross sectional area of the metallic conductor. This means as the resistance increases the cross sectional area decreases and vice versa.