Checking for excessive circuit resistance is being discussed. Technician A says measuring voltage drop is the most accurate method of determining circuit resistance. Technician B says measuring resistance is the most accurate method. Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because measuring voltage drop across a circuit is a more accurate method for determining circuit resistance in a live circuit, as it accounts for the actual current flow and potential differences under load, which direct resistance measurements do not.

Checking for Excessive Circuit Resistance Is Being Discussed