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Transformers — AQA GCSE Physics 8463
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Physics
AQA GCSE Physics
Magnetism and electromagnetism
Induction and Transformers
Transformers
AQA GCSE Physics · 8463
Transformers
What you need to know
Explain the operation of transformers and the induction of current.
Apply the transformer equation:
V
p
V
s
=
n
p
n
s
\frac{V_p}{V_s} = \frac{n_p}{n_s}
V
Revision notes
1
Transformers
8 key terms
Practise with past papers
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s
V
p
=
n
s
n
p
Calculate current and power using the equation for 100% efficiency:
V
s
I
s
=
V
p
I
p
V_s I_s = V_p I_p
V
s
I
s
=
V
p
I
p
Relate transformer principles to power transmission advantages.
