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The principle of working of a transformer

Aself-induction

Belectrostatic induction

Cmagnetic induction

Dmutual induction

Answer:

D. mutual induction

Read Explanation:

  • A transformer is an electrical device used to change alternating current (AC) voltage levels.

  • It operates on the principle of mutual induction, where a changing current in the primary coil creates a changing magnetic field that, in turn, induces an electromotive force (EMF) or voltage in the secondary coil.

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