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 ! = " A B d B nominal direction of Methods to Change Electric Flux Change of B emf To change B : Change B emf produced by an induced E field Change A motional emf Change...
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exam3rev - Physics 202. Review Session for Exam3...

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