Question

what is specific resistance and resistivity upon on what factor does it depend​

Answer 1

Answer:

1. The resistance of a wire of that material of unit length and unit cross-sectional area.
2. The resistivity of a material depends on its nature and the temperature of the conductor,

Answer 2

Explanation:

Specific resistance is defined as the resistance offered per unit length and unit cross-sectional area when the known amount of voltage is applied. The mathematical representation is as follows:

ρ=RAL

Where,

⍴: specific resistance

R: resistance

A: cross-sectional area

L: length of the material

Specific resistance is the reciprocal of specific conductance, which is defined as a measure of a material’s ability to conduct electricity.

RESISTIVITY: It is defined as the resistance of a conductor of unit length and unit area of cross-section . It's SI unit is ohm meter.

FACTORS:

1. Nature of substance

2. Temperature

* resistivity of a material doesn't depend on its length or thickness.

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