Why is alternating current $(AC)$ used for measuring the resistance of an electrolytic solution?
(N/A) Alternating current $(AC)$ is used to prevent the occurrence of electrolysis in the electrolytic cell. If direct current $(DC)$ were used,it would lead to the migration of ions towards the electrodes and cause chemical changes,thereby altering the concentration of the solution. By using $AC$,the direction of the current changes rapidly,which prevents the net migration of ions and keeps the concentration of the solution constant,allowing for an accurate measurement of resistance.
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