A soft magnetic material is easily magnetized and demagnetized, making it suitable for temporary magnets. A hard magnetic material is difficult to demagnetize, making it suitable for permanent magnets.
Which row correctly identifies the material used for the core of an electromagnet and the material used for a permanent magnet?
Electromagnet core = iron, permanent magnet = iron
Electromagnet core = iron, permanent magnet = steel
Electromagnet core = steel, permanent magnet = iron
Electromagnet core = steel, permanent magnet = steel
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.