Question

The unit of specific resistance is

• A. ohm -metre${}^2$
  
• B. ohm
• C. ohm-metre
• D. ohm per metre

Answer 1

The correct option is C ohm-metre

$R=\rho \frac{l}{A}$

$⟹\rho =\frac{RA}{l}$

$=\frac{\Omega .m^2}{m}$

$=\Omega .m$

Answer-(C)