Q. The unit of specific resistance is
A) $Ohm/cm^{2}$
B) $Ohm/cm$
C) $Ohm - cm$
D) $(Ohm - cm)^{- 1}$
Explanation
$R = \ \rho\frac{L}{A} \Rightarrow \ \rho = \frac{RA}{L} = ohm\ \times cm$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.