State Ohm's Law and explain how you would apply it to troubleshoot a motor that is not starting.

• A. P = V × I; measure current to estimate torque.
• B. Ohm's law is not applicable to motor circuits.
• C. V = I × R; measure voltage (V) and current (I) to determine resistance (R) or use V/I to infer faults such as open circuits, shorts, or overload.
• D. Power equals voltage times resistance.

Answer: (C)