Chapter 31: Electromagnetic Induction

Study Plan

In this chapter we will see that a relative motion between magnetic fields and coils converts mechanical work into electrical work by generating a voltage, or an electromotive force (emf), across the coils. We will consider such questions as:

  • How does a simple generator produce an emf ? (Section 31.2, page 1000)
  • How does a rotating coil produce an alternating emf ? (Example 4, page 1003)
  • How can a rotating coil produce a steady, nonalternating emf ? (Section 31.3 and Example 5, page 1009)
  • How much magnetic energy is stored in the coils of a large generator? (Example 12, page 1015)

Organize

  1. Prepare for lecture by reading the assigned sections from Chapter 31 in your textbook or ebook. This will provide an organizing framework for concepts introduced in lecture, and help you take better notes.
  2. Take the checkup quiz and work the Checkup questions in your textbook to assess your understanding of basic concepts. Take note of any topics you need to review further.
  3. Review the Examples from your textbook. These progress from simple to complex, and provide concrete illustrations of the concepts discussed.
  4. Review the Problem Solving Techniques box on Faraday’s Law, Lenz’ Law (page 1005) from your textbook.

Learn

  1. Re-read Chapter 31 and review your lecture notes.
  2. Access the Online Concept Tutorials given for this chapter. Tutorials use animation and interactive exercises to help develop your understanding of fundamental topics.
    Electromagnetic Induction
    Sections: 31.2, 31.3
    Superconductors
    Sections: 31.1, 31.4
  3. Use the FlashCards to test your memory for new key terms and equations.
  4. Work the end of chapter Problems and Review Problems assigned by your instructor. If your instructor has assigned SmartWork online homework, login from the right navigation pane.

Connect

  1. Throughout the text Physics in Practice boxes explore real-world applications of core concepts in specific detail. In Chapter 31 see:
    Concept in Context Physics in Practice: Magnetic Levitation
  2. Physics in the News offers additional real-world physics applications, and a daily dose of science-based news.

Section Menu

Organize

Learn

Connect

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