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Lecture 29 – Faradays Law and Lenz Rule

Lecture 29 – Faradays Law and Lenz Rule. Levitation of a cubic magnet Jumping Ring Falling magnet in a metal tube Single faraday’s law demo. Demo:. s ide view:. Lenz Law: Current loop has magnetic inertia. It has the tendency to maintain its flux state. Initial: 10 lines out

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Lecture 29 – Faradays Law and Lenz Rule

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  1. Lecture 29– Faradays Law and Lenz Rule Levitation of a cubic magnet Jumping Ring Falling magnet in a metal tube Single faraday’s law demo Demo: side view:

  2. Lenz Law: Current loop has magnetic inertia. It has the tendency to maintain its flux state. Initial: 10 lines out Next: 12 lines out (2 lines in to maintain original 10 lines out status

  3. Application: Falling magnet in a metal tube Demo: The falling magnet moves slowly Do the current below the magnet You will do the case where the loop is above the magnet. The loop has magnetic inertia: Now: 3 lines  Next: 5 lines 

  4. Now for the current loop above the magnet Now: 3 lines  Next: 1 lines It affects the falling magnet:

  5. Jumping Ring Demo: Show current loop as magnetic initial. After we turn on B of the solenoid, the ring jumps away to maintain net flux state. Understanding the force affecting the ring: = stronger lifting force

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