Question

We cannot measure the resistance of an ionic solution using DC because:

• A. it changes the composition of the solution \hspace{1cm}
• B. it can cause sparks and shocks
• C. it does not affect the composition of the solution \hspace{1cm}
• D. it converts electrolytic cell to galvanic cell

Hint:

When measuring resistance in ionic solutions, alternating current (AC) is preferred as it prevents electrolysis and changes in solution composition.

Answer 1

The Correct Option is A

Electrolysis, a consequence of applying direct current (DC) to ionic solutions, causes solution decomposition into constituent ions. This ionic alteration impedes precise resistance measurements.