Physics And Measurement Question 338

Question: The unit of specific resistance is

[SCRA 1989; MP PET 1984; CPMT 1975]

Options:

A) $ Ohm/cm^{2} $

B) $ Ohm/cm $

C) $ Ohm-cm $

D) $ {{(Ohm-cm)}^{-1}} $

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Answer:

Correct Answer: C

Solution:

$ R=\rho \frac{L}{A}\Rightarrow \rho =\frac{RA}{L}=ohm\times cm $



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