Physics · Oct / Nov 2022 · Paper 11 · Question 33
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
Show the answer
Correct answer: A. The changing magnetic field in the transformer induces an e.m.f. in the secondary coil.
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.