Physics · Oct / Nov 2022 · Paper 12 · Question 36
5054The transformer
Which statement about a transformer is correct?
- AThe changing magnetic field in the transformer induces an e.m.f. in the secondary coil.
- BThe core of the transformer is made of iron because iron is a good electrical conductor.
- CThe transformer converts alternating current to direct current.
- DThe transformer converts direct current to alternating current.
As printed in the paper
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Correct answer: A. The changing magnetic field in the transformer induces an e.m.f. in the secondary coil.
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