Courses
Courses for Kids
Free study material
Offline Centres
More
Store Icon
Store
seo-qna
SearchIcon
banner

On which factors does the resistance of the conductor depend?

Answer
VerifiedVerified
435.9k+ views
Hint: Resistance is the measure of the opposition to current flow during a circuit. Resistance is always measured in the ohms, symbolized by the Greek letter omega (Ω). Insulators: The materials that are present at high resistance and restrict the flow of electrons.

Complete step by step solution:
The resistance of the conductor depends on the cross-sectional area of the conductor, the length of the conductor, and its resistivity. It is vital to note that electrical conductivity and resistivity are inversely proportional, meaning that there are more conductive things that are the less resistive to it.
Factors on which conductor depend upon:
The temperature of the conductor
The cross-sectional area of the conductor
Length of the conductor
Nature of the material of the conductor
Electrical resistance is directly proportional to the length (L) of the conductor and inversely proportional to the cross-sectional area (A). It's given by the next relation.
R= Pl/A
Where ρ is that the resistivity of the material (measured in Ω m, ohm meter)
The resistance of a conductor increases with an increase in temperature because the thermal velocity of the free electrons increases because the temperature increases. This results in an increase within the amount of collisions between the free electrons.]

Note:
Basically resistance of a conductor only depends upon its resistivity (rho) , cross section of the conductor(A) and thus the length of the conductor(l) . The resistivity of a conductor is totally dependent upon the material of the conductors, it's fixed for that specific material.