Which of the following is a wrong statement?

  • A
    An emf can be induced between the ends of a straight conductor by moving it through a uniform magnetic field.
  • B
    The self-induced emf produced by changing current in a coil always tends to decrease the current.
  • C
    Inserting an iron core in a coil increases its coefficient of self-induction.
  • D
    According to Lenz's law,the direction of the induced current is such that it opposes the flux change that causes it.

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