An engineer is designing a small handheld compass that needs a magnetic pointer to constantly align with Earth's magnetic field without needing any external power source or battery.
Which type of magnet is suitable for this purpose?
a permanent magnet only
an electromagnet only
either a permanent magnet or an electromagnet
neither a permanent magnet nor 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.