What is resistivity ?

Question

Answer

Resistivity is the resistance offered by a material (it can be conductor , semiconductor and insulators ) per unit lenght .

Well , SI unit of Resistivity is Ohm m .

Resistivity of Silver is best . It is 1.6 * 10ⁿ [ here n = (-8)] ohm m at 0 degree C
That's why it is the best conductor of Electricity.

Resistivity is depends on the nature of conductor and temperature .
Some materials like Nichrome (alloy of Nickel, Iron and Chromium ) exhibit a very weak dependence of Resistivity with temperature .

Answer

Resistivity of a material is, the resistance offered by a conductor in per unit length is known as Resistivity .

Or

Resistivity of a material is the resistance offered by its piece having length 1m and area of cross section is 1 m square

Si unit of Resistivity is ohm meter.

Answer

Electrical resistivity and its converse, electrical conductivity, is a fundamental property of a material that quantifies how strongly it resists or conducts the flow of electric current. A low resistivity indicates a material that readily allows the flow of electric current.

**Resistivity is a measure of the resistance of a given size of a specific material to electrical conduction. ... Materials that conduct electrical current easily are called conductors and have a low resistivity. Those that do not conduct electricity easily are called insulators and these materials have a high resistivity.

**The resistivity of a material is the resistance of a wire of that material of unit length and unit cross-sectional area. The unit for resistivity is the ohm-metre

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Answer

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.

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Answer

Resistance with unit length and unit area of cross section of conductor is termed as resistivity of the material of which the conductor is made up of

Similar Class 10 Doubts

what is resistivity? anybody can explain it

What is resistivity?

What is exact definition of resistivity?

List two distinguishing features between the resistance and resistivity of a conductor. A wire is stretched so that its length becomes 6/5 times of its original length. if its original resistance is 25 W, find its new resistance and resistivity .Give justification for your answer in each case.?

Define resistivity.?

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