Does resistivity depend upon length?

Resistivity is a property of the wire, it doesn’t depend upon it’s length or cross-sectional area.

What are the factors affecting resistivity?

Factors Effecting the Resistivity of Electrical Materials

• Temperature.
• Alloying.
• Mechanical stressing.
• Age Hardening.
• Cold Working.

Why does resistivity does not depend on length and area?

Larger cross sections have less resistance, and longer conductors have more resistance. Therefore, by multiplying resistance by area and dividing by length, you get a value for a material property (resistivity ρ) that doesn’t depend on the size of the conductor.

What determines the resistivity of a material?

Resistivity is the resistance per unit length and cross-sectional area. It is the property of the material that opposes the flow of charge or the flow of electric current. ρ = R A / L, where R is the resistance in ohms, A is the area of cross-section in square meters and L is the length in meters.

Does resistivity depend on material?

Resistivity depends on the temperature of the material. At a constant temperature, we can assume the resistivity is a constant, and use Ohm’s Law which states that the resistance will be constant. This hinders the flow of electrons, and the resistivity increases.

What do you mean by resistivity?

resistivity, electrical resistance of a conductor of unit cross-sectional area and unit length. A characteristic property of each material, resistivity is useful in comparing various materials on the basis of their ability to conduct electric currents. High resistivity designates poor conductors.

Which of the following does resistivity not depend on?

The resistivity of a material depends on its nature and the temperature of the conductor. The resistivity of a material doesn’t depend on its shape and size (length and area).

Does resistivity increase with area?

The resistivity of the conductor is inversely proportional to the area of the conductor.

What is meant by resistivity?

What are the factors depends on resistance and resistivity?

Basically resistance of a conductor only depends upon its resistivity (rho) , cross section of the conductor(A) and the length of the conductor(l) . The resistivity of a conductor is totally depend upon the material of the conductor, it is fixed for that particular material.

What is resistivity write its unit on factors do resistivity depend?

The resitivity of the material is the resistance of that conductor in per unit length and per unit cross sectional area. SI Unit of Resistivity is ohm- metre.

What is different between resistance and resistivity?

Resistance is the physical property of a substance because of which it opposes the flow of current i.e. electrons. Resistivity is the physical property of a particular substance which is having particular dimensions.