Eddy currents, Faraday's Law and Lenz's Law provide the connection between train brakes and and MRI machines in a lesson that asks teachers to provided the material needed so the pupils can understand the properties of changing magnetic fields.

Concepts

magnetic fields, magnetic resonance imaging, electric currents, magnets, electromagnetism, technology resources

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Additional Tags

eddy currents, farraday's law

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Instructional Ideas

• Assign videos on Faraday's and Lenz's Laws to watch before coming to class and do the problems during class
• Provide additional problems and scenarios to work together as a class

Classroom Considerations

• Set up the demonstrations ahead of time and test them to be sure they work as anticipated
• The 11th part in a 14-part series

Pros

• The lesson contains three demonstrations that illustrate Farraday's Law
• The answer key shows the work required to arrive at the solution

Cons

• No instructional directions are provided