During the measurement of open circuit potential as a function of time, the counter electrode need not be connected.

Question

Quizplus · Accepted Answer

The measurement of open circuit potential requires only the working electrode, while the counter electrode is not connected. This is because the counter electrode is used only to complete the electrical circuit during electrochemical processes, but in the case of measuring open circuit potential, no current is flowing and thus the counter electrode is not necessary.

During the Measurement of Open Circuit Potential as a Function