What is resistivity?

Question

Answer

Resistivity is a property of an object which is 1 meter long and 1m square in cross section area to resists the flow of electrons

Answer

*Resistivity of a material is the resistance of a wire of that material of unit length and area of cross section..
*Its unit is ohm metre.

Answer

If lenght of conductor 1m and cross section area is1m sqaure then resitance of condutor is called resisivity and its si unit is ohm

Answer

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.

✔The resistivity of a material depends on its nature and the temperature of the conductor, but not on its shape and size.

✔A good conductor has less resistivity, whereas a bad conductor or insulator has high resistivity.

✔The resistivity of semi-conductors lies between that of conductors and insulators. The resistivity of a metallic conductor increases with an increase in its temperature, whereas the resistivity of a semi-conductor decreases with an increase in its temperature.

Answer

Resistivity

Resistivity is the measure of a material's ability to resist the flow of electric current. It is a physical property of a material that determines the amount of resistance it will offer to the flow of electric current. The resistivity of a material is measured in ohm-meters (Ωm).

Factors Affecting Resistivity

Temperature: Resistivity of most materials increases with an increase in temperature

Material: The resistivity of a material depends on the nature of the material and its chemical composition. Materials with high resistivity include rubber, glass, mica, and plastic, while metals like copper and aluminum have low resistivity.

Impurities: The presence of impurities in a material can increase its resistivity.

Crystal Structure: The resistivity of a material depends on its crystal structure. Materials with a regular and uniform crystal structure typically have low resistivity.

Uses of Resistivity

Resistivity is an essential property in the design and analysis of electrical and electronic circuits. It is used to determine the amount of resistance a particular material will offer to the flow of electric current. The knowledge of resistivity is used in the following areas:

Design and analysis of electrical circuits

Determination of the resistance of a particular material

The measurement of the electrical conductivity of materials

Design and analysis of electronic circuits

Conclusion

Resistivity is an essential property in the design and analysis of electrical and electronic circuits. It is a physical property of a material that determines the amount of resistance it will offer to the flow of electric current. The resistivity of a material is determined by several factors such as temperature, material, impurities, and crystal structure. The knowledge of resistivity is used in the design and analysis of electrical and electronic circuits.

Answer

a measure of the resisting power of a specified material to the flow of an electric current.

Answer

Electrical resistivity is a fundamental property that quantifies how strongly a given material opposes the flow of electric current. A low resistivity indicates a material that readily allows the flow of electric current.

Similar Class 10 Doubts

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.?

What is resistivity ?

Define resistivity.?

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