Do you know the role an inductive-loop traffic detector plays in getting a green light at a traffic light? The detector senses a change in the electromagnetic field and triggers the light. This video explains how by adding a magnet to a scooter or light weight car can help in getting a green light faster. [1:24]

Concepts

magnetism

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Additional Tags

electromagnetic field, inductive-loop traffic detector, traffic light, trigger green lights, magnet

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Classroom Considerations

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