Bar X is made of soft iron and Bar Y is made of steel. Both bars are placed inside separate solenoids connected to a direct current (d.c.) power supply to magnetise them. The current is then switched off in both solenoids. Which statement about the magnetic state of the bars is correct?
Both Bar X and Bar Y lose almost all of their magnetism.
Both Bar X and Bar Y retain most of their magnetism.
Bar X retains most of its magnetism, while Bar Y loses almost all of its magnetism.
Bar X loses almost all of its magnetism, while Bar Y retains most of its magnetism.
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.