Question

state the factors on which the resistance of a conductor depends

Answer 1

length and area
directly proptional to length and inversely proptional to area
also,it depends upon the nature of material

Answer 2

Resistance of a Conductor mainly depends on 4 Factors.

→ Nature of the Material.

→ Length of the Conductor.

→ Area of Cross-section.

→ Temperature.

Nature of the Material.

Different materials have different resistance levels. For example, Copper is a better resistor than Nickel.

Length of the Conductor.

As the length of the conductor increases, the resistance of the conductor also increases. Therefore they are directly proportional.

R ∝ $l$

Area of Cross-section.

As the area of cross section increases, the resistance decreases, i.e, resistance is inversely proportional to the area of cross-section.

$\sf R \propto \dfrac{1}{A}$

Temperature.

As temperature increases, resistance also increases. Hence, resistance is directly proportional to the temperature of a conductor.