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Unformatted text preview: 1 Physics 202, Lecture 15 Todays Topics Faradays Law (Ch 31) Review Emf Change of Magnetic Flux and Emf ( ) Lenzs Law and its applications Lenz s Law and its applications Formulation of Faradays Law Expected Preview: Ch 31.1-3 Sources of E and B Fields: An overview Sources for the electric field: Electric charges (Coulomb's Law, static) subjects of past several weeks Change of B field (Faraday's Law, varying in time) Today Sources for the magnetic field: Electric current (Biot-Savart Law/Amperes Law, static) Last week Change of E field (Ampere-Maxwell Law, varying) Ch 34 All these features are summarized in Maxwells Equations. Ch 34 Review: Electromotive Force (emf, ) Electromotive force, emf, is a measure of the voltage that can be provided by a source. emf is not a force, it has a unit of volts sources of emf: chemical process (battery) change of magnetic flux change of magnetic flux...
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This note was uploaded on 04/25/2009 for the course PHYS 202 taught by Professor Everett during the Spring '08 term at Wisconsin.
- Spring '08