True or False: If a relay coil is good, you should get no voltage reading across it when it is energized.

When a relay coil is energized, it creates a magnetic field that closes the switch associated with the relay, allowing current to flow through the load side of the relay contacts. A properly functioning relay coil will exhibit voltage across its terminals when energized because it is designed to operate at a specific voltage rating.

Measuring the voltage across a good relay coil while it is energized should yield a reading approximating the supply voltage it is rated for. If there is no voltage reading across the coil when it is energized, it could indicate that the relay is defective or that there is an issue with the power supply to the coil. Thus, the correct understanding is that a good relay coil should show a voltage reading when it is energized, making the statement false.