Question

Solutions of two electrolytes $A$ and $B$ each having concentration of 0.2 M have conductivities $2\times {10}^{-2},4\times {10}^{-4}\text{S/cm}$ respectively. Which will offer greater resistance to the file of current and why?

Answer 1

$K=\frac{1}{\rho }$

$⟹R=\rho \frac{l}{A}$

Less is the conductivity, more is the resistivity, more is the resistance offer.

$\therefore$ Electrolyte $B$ having less conductivity offer higher resistance.