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Tamil Nadu Board of Secondary EducationHSC Science Class 12

Define electrical resistivity. - Physics

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Question

Define electrical resistivity.

Definition

Solution

The electrical resistivity of a material is defined as the resistance offered to current flow by a conductor of unit length having a unit area of cross-section.

`rho = "RA"/"L"`

Its unit is ohm-meter (Ωm)

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Chapter 2: Current Electricity - Evaluation [Page 120]

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Samacheer Kalvi Physics - Volume 1 and 2 [English] Class 12 TN Board
Chapter 2 Current Electricity
Evaluation | Q II. 7. | Page 120
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