lecture13

Fundamentals of Physics, (Chapters 21- 44) (Volume 2)

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Unformatted text preview: Chapter 30: Induction and Inductance Experiments Faraday’s Law of Induction Changing Flux Lenz’s Law Inductance of a Solenoid Self Induction Induction and Energy Transfer Checkpoint #5 RL Circuits Mutual Inductance Problems Chapter 30: Induction and Inductance – p. Experiments We start with the results of two interesting experiments: A circuit without a source has a detected current when a magnet is moving through it. Two circuits, one with a source, are placed next to each other. The current flowing through one causes current to flow through the other. Chapter 30: Induction and Inductance – p. Faraday’s Law of Induction These two results lead to Faraday’s Law of Induction: An emf is inducted in a loop when the number of magnetic field lines passing through the loop is changing. φ B is the magnetic flux: φ B = integraldisplay vector B · d vector A E =- N dφ B dt =- d dt integraldisplay vector B · d vector A N is the number of turns E is the electromagnetic force Chapter 30: Induction and Inductance – p. Changing Flux...
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lecture13 - Chapter 30: Induction and Inductance...

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