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Question : 1
Total: 8
Define the term 'electrical conductivity' of a metallic wire. Write its S.I. unit.
Solution:
The electrical conductivity of a metallic wire is defined as the ratio of the current density to the electric field it creates.
Electrical conductivity,σ = JE
S.I. unit= ( ohm m ) − 1
OR
The reciprocal of resistivity of a material is called its electrical conductivity.
Electrical conductivity,
S.I. unit
OR
The reciprocal of resistivity of a material is called its electrical conductivity.
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