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Activity Industry Sector
Transportation

Activity Originally Created By: MaryRose Lovgren

Discussion on Function and Testing

Part of Lesson Plan: Operation and Testing of Relays (updated) by Mike Monahan

Activity Overview / Details

Discuss the methods for testing relays: the power up method and the ohm meter reading accross the coil.

Show / demonstrate the 9 volt battery trick across the terminals.

Materials / Resource

  • Headlight upgrades Relays.pdf Headlight upgrades Relays.pdf [ Download ] Explanation- with drawings with and without relays