무료 Alternating voltage - step-down transformer - Question 애니메이션

Alternating voltage - step-down transformer - Question A transformer is a device used to change an alternating voltage. A typical transformer consists of two coils of wire wound on a soft iron core, as shown below. An engineer sets up a transformer with more turns on the primary coil than on the secondary coil, and than applies an alternating voltage to the primary coil.

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