Electromagnetic Induction

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Electromagnetic Induction
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Recall

• Charges moving through magnetic field at right
  angles experience a magnetic force

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Magnetic flux is the flow of B-field through an
area
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Induced emf (voltage) occurs when the flux
through a closed loop changes
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Lenzs Law

• Change in the magnetic flux (D?) through a closed
  loop will induce current in the loop that opposes
  the change

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What is the induced emf? What is the induced
current?
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