Eddy Currents and Electromagnetism
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Questions and Answers

What is the primary cause of the induction of eddy currents?

  • A non-conductive material
  • A stationary conductor
  • A time-varying magnetic field (correct)
  • A constant magnetic field

    • In which planes do eddy currents flow within conductors?

  • Parallel to the magnetic field
  • Perpendicular to the magnetic field (correct)
  • At an angle to the magnetic field
  • In all directions within the conductor

    • What is the relationship between the magnitude of eddy currents and the rate of change of flux?

  • Inversely proportional
  • Directly proportional (correct)
  • Depends on the resistivity of the material
  • No relationship

    • According to Lenz's law, how does an eddy current respond to the magnetic field that created it?

    <p>Creates a magnetic field that opposes the change</p> Signup and view all the answers

    What is the purpose of eddy current brakes?

    <p>To stop rotating power tools quickly</p> Signup and view all the answers

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