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# Calculate the Area of Cross-section of a Wire If Its Length is 1.0 M, Its Resistance is 23 ω and the Resistivity of the Material of the Wire is 1.84 × 10−6 ω M. - CBSE Class 10 - Science

ConceptFactors on Which the Resistance of a Conductor Depends

#### Question

Calculate the area of cross-section of a wire if its length is 1.0 m, its resistance is 23 Ω and the resistivity of the material of the wire is 1.84 × 10−6 Ω m.

#### Solution

Length of the wire, =1.0 m
Resistance of the wire = 23 Ω
Resistivity of the material of the wire = 1.84 × 10−6 Ωm.
We know that,
R=l/A
Area of cross-section,
A=1.84xx10^-6Ωm

A = 8 x 10-8 m2
Thus, the area the of cross-section of the wire, A = 8 x 10-8 m2
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Solution Calculate the Area of Cross-section of a Wire If Its Length is 1.0 M, Its Resistance is 23 ω and the Resistivity of the Material of the Wire is 1.84 × 10−6 ω M. Concept: Factors on Which the Resistance of a Conductor Depends.
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