Question

Off-set potential is _____________

(a) difference in half-cell potentials between two electrodes

(b) sum of half-cell potentials between two electrodes

(c) average of half-cell potentials between two electrodes

(d) complement of half-cell potentials between two electrodes

The question was posed to me by my college director while I was bunking the class.

My doubt stems from Recording Electrodes topic in division Bioelectric Signal and Electrodes of Biomedical Instrumentation

Answer 1

The correct answer is (a) difference in half-cell potentials between two electrodes

To explain: The difference in half cell potential that exists between two electrodes is called off-set potential. The differential amplifies used to measure potentials between two electrodes are generally designed to cancel the electrode offset potential so that only the signals of interest are recorded.