In a relay, which component opens and closes the switching contacts?

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Study for the Air Force Test on Aircraft Maintenance, Electrical Systems, and Hazard Communication. Use flashcards and multiple choice questions with hints and explanations. Prepare for your exam today!

Multiple Choice

In a relay, which component opens and closes the switching contacts?

Explanation:
The moving armature is the part that opens and closes the switching contacts. When the coil is energized, its magnetic field pulls the armature into position, which moves the contacts to establish or interrupt the electrical path. When the coil current is removed, a restoring force or spring returns the armature to its original position, reversing the contact state. The coil provides the magnetic force, but it’s the armature that physically moves the contacts to make or break the circuit.

The moving armature is the part that opens and closes the switching contacts. When the coil is energized, its magnetic field pulls the armature into position, which moves the contacts to establish or interrupt the electrical path. When the coil current is removed, a restoring force or spring returns the armature to its original position, reversing the contact state. The coil provides the magnetic force, but it’s the armature that physically moves the contacts to make or break the circuit.

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