exam3rev - Physics 202 Review Session for Exam3...

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Unformatted text preview: Physics 202. Review Session for Exam3 Quizzes/Exercises: Determine Direction Of emf Indicate the direction of emf in the following cases: + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + |B| increases + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + |B| decreases |B| decreases |B| increases |B| decreases path outside B or Faraday ’s Law (Reminder) The emf induced in a “circuit” is proportional to the time rate of change of magnetic flux through the “circuit”. Notes: “Circuit”: any closed path does not have to be real conducting circuit The path/circuit does not have to be circular, or even planar dt d B ! " = # A B θ ! • = " A B d B nominal direction of ε Methods to Change Electric Flux Change of Φ B emf To change Φ B : Change B emf produced by an induced E field Change A motional emf Change...
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This note was uploaded on 03/06/2010 for the course PHYSICS 201 taught by Professor Walker during the Spring '08 term at University of Wisconsin.

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exam3rev - Physics 202 Review Session for Exam3...

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