Q. The dimensions of resistivity in terms of $M,L,T$ and $Q$ where $Q$ stands for the dimensions of charge, is
A) $ML^{3}T^{- 1}Q^{- 2}$
B) $ML^{3}T^{- 2}Q^{- 1}$
C) ${ML}^{2}T^{- 1}Q^{- 1}$
D) $MLT^{- 1}Q^{- 1}$
Explanation
$\rho = \frac{RA}{l}\ i.e.$ dimension of resistivity is [$ML^{3}T^{- 1}Q^{- 2}\rbrack$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.