Video Details

Electromagnetism: Transformer

Grade Levels: 3 - 12
Core Subject(s): Science
Length: 00:00:40
Website: http://www.uen.org/emedia
Usage rights: Download and retain personal copies in perpetuity.

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A transformer is composed of two coils of wire - a primary coil and a secondary coil. The coils are wrapped around a metal structure. When an alternating current enters the primary coil, a magnetic field is created.

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