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Electro-Magnetic Induction

  1. Mar 22, 2004 #1
    What does 'Induced EMF' mean?

    Describe clearly the principles of 'Self Induction'

    What is the unit of Inductance?

    A Coil has self-inductance if 0.25H. Calculate the induced EMF if the current changes from 100mA to 350mA in 25mS

    Calculate the inductance of a circuit in which an EMF of 30V is induced, when the circuit's rate of change is 200A/sec.

    Thanks - need help or answers asap.
  2. jcsd
  3. Mar 22, 2004 #2


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    Staff Emeritus
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    If you really really need those answers fast why not just look in a text book? You are, after all, just asking for basic definitions.
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