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Current Electricity — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsCurrent Electricity2 Marks
Question
Define the term resistivity and write the SI unit.
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Answer

The resistivity of a material of a conductor is defined as the resistance offered by a conductor of length 1m and area of cross-section 1m2. Its SI unit is ohm × metre ($\Omega\text{m}$).

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