Between $AC$ and $DC$ current,which one is used to determine the conductivity of an electrolytic solution? Why?

(N/A) For determining the conductivity of an electrolytic solution,$AC$ (Alternating Current) is used instead of $DC$ (Direct Current).
This is because $DC$ causes electrolysis,which leads to a change in the concentration of the solution near the electrodes.
This change in concentration results in polarization effects,making it difficult to measure the true resistance of the solution.
$AC$ prevents these changes in concentration and polarization,allowing for an accurate measurement of the solution's conductivity.