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Question

Physics Question on Current electricity

The unit of specific conductivity is

A

Ω cm−1\Omega \,cm^{-1}

B

Ω cm−2\Omega\, cm^{-2}

C

Ω−1 cm\Omega ^{-1}\,cm

D

Ω−1 cm−1\Omega ^{-1}\,cm^{-1}

Answer

Ω−1 cm−1\Omega ^{-1}\,cm^{-1}

Explanation

Solution

Specific conductivity =1specific resistance=\frac{1}{\text{specific resistance}} =1Ω−cm=\frac{1}{\Omega -cm} =(Ω−cm)−1=(\Omega -cm)^{-1}