Complete the table below by choosing a suitable metal from the list for each electromagnet, transformer, or magnet part.
Each metal can be used once, more than once, or not at all.
| Part | Metal |
|---|---|
| Permanent bar magnet | _________________ |
| Transformer core | _________________ |
| Solenoid coils | _________________ |
| Electromagnet core | _________________ |
The primary coil of a transformer is connected to a power supply of 230 V230\text{ V}230 V a.c. The primary coil has 800800800 turns and the secondary coil has 160160160 turns.
Calculate the output voltage of the secondary coil.
136 exam-style questions on CIE IGCSE Physics 4.5.6a Construction and operation of a transformer. Each one has a worked solution and a mark scheme showing where the marks go.