Physics - Motors, Generators and Transformers

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1) An alternating voltage causes an alternating current to flow in the primary coil.

2) The alternating current induces a magnetic field in the iron core.

3) Since the coil is insulated, no current flows through the core.

4) The magnetic field induces a potential difference across the secondary coil.

5) This induces an alternating current in the secondary coil.

6) The size of the secondary potential difference can be calculated by the ratio of turns on the two coils.


Alternating Current Generators

1) A magnet is spun in or near a coil.

2) The coils cuts through the…


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