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7.3.4 Transformers — AQA Physics 8463 | GradeGen.AI
Physics
Magnetism and electromagnetism
Induction and Transformers
Transformers
Transformers
AQA GCSE Physics (8463) — Magnetism and electromagnetism
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
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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.
