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CBSE Class 10 Answered

resistivity
Asked by kamalaranjanmohantymohanty5 | 06 Jan, 2024, 10:05: AM
answered-by-expert Expert Answer

Resistivity of coductor is the electrical resitance of unit length per unit cross section area .

Resistance R is directly proportional to length L of conductor , i.e., R ∝ L .

Resistance R is inversely proportional to area A of conductor , i.e., R ∝ 1/A .

Hence constant of proportionalty is  resistivity that is represented by symbol  ρ . 

Hence resistance R of conductor is

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Answered by Thiyagarajan K | 06 Jan, 2024, 13:08: PM

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