Transformer-yada
Cashar 7 / 8
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I can describe how a transformer works and solve problems using transformer equations.
Muuji qoraalka
A potential difference that causes a current to flow in the primary coil magnetises the iron core.
When the iron core is magnetised, it induces a potential difference across the secondary coil.
An AC gives the changing magnetic field needed to induce a potential difference across the secondary coil.
Transformers are almost 100% efficient so the power output is equal to the power input.
The ratio of the number of turns on the coils is equal to the ratio of the potential differences across them.
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