The resistance of a conductor directly proportional to its-

Correct option is D

The correct answer is (d) Length.
· The resistance of a conductor depends on its length, material, temperature, and cross-sectional area.
· According to Ohm's Law, resistance (R) is directly proportional to the length (L) of the conductor. Mathematically, R∝LR.
· This means that if the length of the conductor increases, its resistance also increases proportionally.
Information Booster:
· Area of cross-section: The resistance of a conductor is inversely proportional to its cross-sectional area. As the area increases, the resistance decreases.
· Thickness: Thickness is essentially the same as the cross-sectional area. A thicker conductor has a larger cross-sectional area, which reduces resistance.
· All the options: Not all the options are correct because the resistance is not directly proportional to the area of cross-section or thickness; it is inversely proportional to them.