Ohm's law states that current flowing through a conductor is directly proportional to potential difference at constant physical conditions like temperature, etc.

Resistance depends on:-

1. Length of wire(directly proportional)

2. Cross sectional Area of wire(i.e. thickness)(inversely proportional)

3. Temperature

4. Nature of material

Ohm's Law: Ohm's Law states that the current flowing through a conductor is directly proportional to the potential difference across its ends, provided its temperature and other physical conditions remain constant.

Factors on which resistance of a conductor depends:

1. Material of the conductor: The resistance of a conductor depends on the material used to make it. Materials with high resistivity, such as tungsten, have high resistance. Materials with low resistivity, such as copper, have low resistance.

2. Length of the conductor: The resistance of a conductor is directly proportional to its length. Longer conductors have higher resistance than shorter conductors.

3. Cross-sectional area of the conductor: The resistance of a conductor is inversely proportional to its cross-sectional area. Conductors with larger cross-sectional areas have lower resistance than conductors with smaller cross-sectional areas.

4. Temperature of the conductor: The resistance of a conductor increases with an increase in temperature. The increase in temperature causes the atoms of the conductor to vibrate more, which leads to more resistance.

5. Presence of impurities: The presence of impurities in a conductor can increase its resistance. Impurities can disrupt the flow of electrons through the conductor, leading to an increase in resistance.

6. Nature of current: The resistance of a conductor may vary depending on the type of current flowing through it. Alternating current (AC) and direct current (DC) may have different effects on the resistance of a conductor.

In summary, the factors on which the resistance of a conductor depends include the material of the conductor, length of the conductor, cross-sectional area of the conductor, temperature of the conductor, presence of impurities, and nature of current.