Question
Define the term 'electrical conductivity' of a metallic wire. Write its $S.I$ unit.
✓
Answer
Electrical conductivity is defined as current density per unit electric field. $($Alternatively, Reciprocal of resistivity$)$
$SI$ Unit $: ohm^{-1} m^{-1}$
$SI$ Unit $: ohm^{-1} m^{-1}$
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