Which row in the table correctly identifies a suitable material for a permanent magnet, the magnetic property of that material, and a suitable material for the core of an electromagnet?
Permanent magnet materialProperty of permanent magnet materialElectromagnet core materialAironmagnetically softsteelBsteelmagnetically hardironCcoppernon-magneticironDsteelmagnetically softcopper \begin{array}{|c|c|c|c|} \hline & \text{Permanent magnet material} & \text{Property of permanent magnet material} & \text{Electromagnet core material} \\ \hline \text{A} & \text{iron} & \text{magnetically soft} & \text{steel} \\ \hline \text{B} & \text{steel} & \text{magnetically hard} & \text{iron} \\ \hline \text{C} & \text{copper} & \text{non-magnetic} & \text{iron} \\ \hline \text{D} & \text{steel} & \text{magnetically soft} & \text{copper} \\ \hline \end{array} ABCDPermanent magnet materialironsteelcoppersteelProperty of permanent magnet materialmagnetically softmagnetically hardnon-magneticmagnetically softElectromagnet core materialsteelironironcopperRow A
Row B
Row C
Row D
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.