(a) List the factors on which the resistance of a uniform cylindrical conductor of a given material depends. (b) The resistance of a wire of 0.01 cm radius is 10 ohm. If the resistivity of the wire is 50 × 10⁻⁸ Ω m, find the length of this wire

Factors Affecting Resistance of a Conductor, Resistivity of Materials | PadhAiPro

Question

CASE_STUDIESFactors Affecting Resistance of a ConductorResistivity of Materials2 sub-questions

Similar Questions

Write the relationship between resistivity and resistance of a cylindrical conductor of length l and area of cross-section A. Hence derive the SI unit of resistivity.

TextAlloys and Their PropertiesFactors Affecting Resistance of a ConductorResistivity of Materials

Why are alloys used in electrical heating devices ?

TextAlloys and Their PropertiesFactors Affecting Resistance of a ConductorResistivity of Materials

Write the relation between resistance R and electrical resistivity ρ of the material of a conductor in the shape of cylinder of length l and area of cross-section A. Hence derive the SI unit of electrical resistivity.

TextFactors Affecting Resistance of a ConductorResistivity of Materials

The resistance of a metal wire of length 3 m is 60 Ω. If the area of cross-section of the wire is 4×10⁻⁷ m², calculate the electrical resistivity of the wire.

TextFactors Affecting Resistance of a ConductorResistivity of Materials

State how would electrical resistivity be affected if the wire (of part 'ii') is stretched so that its length is doubled. Justify your answer.

TextFactors Affecting Resistance of a ConductorResistivity of Materials

Define one ampere.

TextElectric Current and Its DirectionFactors Affecting Resistance of a ConductorResistivity of Materials