In a relay, energizing the coil causes which component to move?

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Prepare for the NCCER Electrical Level 2 Control Systems and Fundamental Concepts exam. Utilize flashcards and multiple choice questions with hints and explanations. Ensure success on your exam!

Multiple Choice

In a relay, energizing the coil causes which component to move?

Explanation:
When you energize the coil in a relay, it becomes an electromagnet and attracts the movable armature. The armature is the part that physically shifts to open or close the switch contacts. The frame and the coil stay in place; the contacts themselves don’t move directly from energizing the coil—the movement comes from the armature pulling or releasing the contacts.

When you energize the coil in a relay, it becomes an electromagnet and attracts the movable armature. The armature is the part that physically shifts to open or close the switch contacts. The frame and the coil stay in place; the contacts themselves don’t move directly from energizing the coil—the movement comes from the armature pulling or releasing the contacts.

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