A student wants to demagnetise a magnetised steel rod.
Describe an electrical method that the student could use to demagnetise the steel rod.
Explain how the student can confirm that the steel rod has been fully demagnetised.
State why soft iron, rather than steel, is preferred for making the core of an electromagnet.
169 exam-style questions on CIE IGCSE Physics Simple phenomena of magnetism, covering Simple phenomena of magnetism. Each one has a worked solution and a mark scheme showing where the marks go.