In this activity, students play a game to practice use of the right hand rule in Lenz’s Law.
To begin, the instructor gives a lecture on Lenz’s Law. Students are then given the rules of the game:
All students begin standing. They will be shown slides with an example of a changing magnetic flux through a wire. On a mini-whiteboard, they write either CW (clockwise), CCW (counter clockwise), or 0, corresponding to the direction of the induced current. After 30 seconds, all students reveal their answers. Students who answer correctly remain standing, those who do not sit down. This will be repeated until one or none remain standing (with the last standing the winner).
After each slide, the instructor goes over the example, explaining the correct answer.
The game is repeated several times, ensuring students who are eliminated early have multiple opportunities.
Students will be able to recognize the direction of an induced current from Lenz’s Law.
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