transformer

The definition of a transformer is a person or thing that changes, or a device with two or more coils of wire that transfer alternating current energy from one coil to another at the same frequency but with changed voltage.

(noun)

  1. An example of a transformer is a fictional creature that changes from a person into a dog.
  2. An example of a transformer is a device that uses electromagnetic induction.

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See transformer in Webster's New World College Dictionary

noun

  1. a person or thing that transforms
  2. Elec. a device containing no moving parts and consisting essentially of two or more coils of insulated wire that transfers alternating-current energy by electromagnetic induction from one winding to another at the same frequency but usually with changed voltage and current values

See transformer in American Heritage Dictionary 4

noun
  1. One that transforms.
  2. A device used to transfer electric energy from one circuit to another, especially a pair of multiply wound, inductively coupled wire coils that effect such a transfer with a change in voltage, current, phase, or other electric characteristic.

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transformer

iron core transformer

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