Technician #1 says that an open transformer coil is indicated by a reading of infinity on an analog ohmmeter. Technician #2 says that a shorted transformer coil is indicated by a reading of infinity on an analog ohmmeter. Which technician is correct?

The statement made by Technician #1 is accurate in that an open transformer coil will indeed show a reading of infinity on an analog ohmmeter, indicating that there is no continuity in the circuit due to a break in the winding. When a coil is open, it means that the electrical path is completely interrupted, which results in no resistance being measured, thus producing an infinite reading.

On the other hand, Technician #2's assertion is incorrect. A shorted transformer coil would not show a reading of infinity. Instead, a shorted coil would typically result in a very low resistance measurement, close to zero, as the windings would be in contact with each other or have created a path for current to flow that bypasses the normal winding resistance.

Therefore, the correct understanding is that an open coil presents an infinite reading, while a shorted coil presents a low resistance reading, confirming that Technician #1 is correct and Technician #2 is not.