**This Powerpoint specifically covers all criteria for –
Unit 4.5.6 The Transformer
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Describe the construction of a simple transformer with a soft-iron core, as used for voltage transformations
Use the terms primary, secondary, step-up and step-down
Recall and use the equationVpVs
N
p
N
s
where p and s refer to primary and secondary
Describe the use of transformers in highvoltage transmission of electricity
State the advantages of high-voltage transmission
**Every Powerpoint includes learning objectives, a starter and plenary, suitable activities and review questions with mark scheme.
**
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