explain resistivity and resistance????
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Answer:resistance is a property of a current carrying conductor to resist the flow of current
resistivity is resistance offered by a material of lenght 1m and area of cross section 1m2 when the current flows perpendicular to opposite face
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Hi Mate,
RESISTANCE:
the resistance of a conductor is the ratio of the potential difference across its ends to the strength of the current flowing through it.
the SI unit is the practical unit of resistance and is called ohm.
the resistance of a conductor if said to be 1 ohm if a current of 1 ampere flows through it when a potential difference of 1 volt is applied across its ends.
RESISTIVITY:
resistivity of material is defined as the resistance offered by a cube of the material of side 1 metre when the current flows perpendicular to the opposite faces of the cube.
Or
resistivity of material is also defined as the resistance of a bi cylindrical conductor of the material of cross sectional area of 1 metre² and length one metre when the current flows perpendicular to the opposite ends of cylinder.
Good Day...!!
RESISTANCE:
the resistance of a conductor is the ratio of the potential difference across its ends to the strength of the current flowing through it.
the SI unit is the practical unit of resistance and is called ohm.
the resistance of a conductor if said to be 1 ohm if a current of 1 ampere flows through it when a potential difference of 1 volt is applied across its ends.
RESISTIVITY:
resistivity of material is defined as the resistance offered by a cube of the material of side 1 metre when the current flows perpendicular to the opposite faces of the cube.
Or
resistivity of material is also defined as the resistance of a bi cylindrical conductor of the material of cross sectional area of 1 metre² and length one metre when the current flows perpendicular to the opposite ends of cylinder.
Good Day...!!
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