Physics And Measurement Question 270

Question: Unit of specific resistance is

Options:

A) $ ohm/m^{2} $

B) $ ohm/m^{3} $

C) $ ohm-m $

D) $ ohm/m $

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Answer:

Correct Answer: C

Solution:

[c] $ R=\rho \frac{l}{A}\therefore \rho =\frac{RA}{l}=\frac{\Omega m^{2}}{m}=\Omega m $



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