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HOW A MOTOR WORKS ­ Motor effect

A coil is inside the magnetic field which is produced by the magnets
When a current flows through the coil is experiences a force due to the magnetic field
There is a downwards force on one side of the coil and an upwards…

Page 2

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TRANSFORMERS

Primary coil is connected to an A.C supply ­ There is a changing magnetic field
(Not a direct current because the magnetic field is then not a changing magnetic field)
Iron core = MAGNETIC

Points for how a transformer works ­
- Type of current and affect on primary…

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