Which interpretation is correct when no voltage is detected across L1 and T1 while the motor is loaded?

Which interpretation is correct when no voltage is detected across L1 and T1 while the motor is loaded?

• A. A measurable voltage of 0 V across L1 and T1
• B. A loud electrical arc
• C. No voltage detected across L1 and T1
• D. A blown fuse

Answer: (C)

Voltage is the potential difference between two points. If you measure across L1 and T1 and don’t detect any voltage while the motor is loaded, that means there is no potential difference between those two points at that moment—the circuit portion between them isn’t energized. This observation doesn’t specify a cause by itself; it just tells you the energy isn’t appearing there. The other possibilities describe faults or outcomes you’d expect to see differently: an arc would indicate a fault with a spark, a blown fuse is a specific failure that stops power to the circuit, and saying there’s a measurable 0 V is still reporting a voltage reading, whereas the statement here emphasizes the absence of any voltage detected.

Voltage is the potential difference between two points. If you measure across L1 and T1 and don’t detect any voltage while the motor is loaded, that means there is no potential difference between those two points at that moment—the circuit portion between them isn’t energized.

This observation doesn’t specify a cause by itself; it just tells you the energy isn’t appearing there. The other possibilities describe faults or outcomes you’d expect to see differently: an arc would indicate a fault with a spark, a blown fuse is a specific failure that stops power to the circuit, and saying there’s a measurable 0 V is still reporting a voltage reading, whereas the statement here emphasizes the absence of any voltage detected.