What is the transformation ratio of a transformer?

  • A
    The ratio of the number of turns in the primary coil to the number of turns in the secondary coil.
  • B
    The ratio of the number of turns in the secondary coil to the number of turns in the primary coil.
  • C
    The ratio of the input power to the output power.
  • D
    The ratio of the primary current to the secondary current.

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