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}} $
Show Answer
Answer:
Correct Answer: C
Solution:
$ R=\rho \frac{L}{A}\Rightarrow \rho =\frac{RA}{L}=ohm\times cm $