A designer needs to choose suitable metals to construct a permanent magnet and the core of an electromagnet.
Which row correctly identifies a suitable metal and its magnetic classification for each application?
Material for permanent magnet: steel (hard magnetic material); Material for electromagnet core: iron (soft magnetic material)
Material for permanent magnet: steel (soft magnetic material); Material for electromagnet core: iron (hard magnetic material)
Material for permanent magnet: iron (hard magnetic material); Material for electromagnet core: steel (soft magnetic material)
Material for permanent magnet: iron (soft magnetic material); Material for electromagnet core: steel (hard magnetic material)
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.