A miniature mass spectrometer requires a region of uniform magnetic field to ensure precise deflection of ionized particles. A designer has two high-strength, flat, rectangular neodymium block magnets.
State how these two magnets should be arranged relative to each other to produce a uniform magnetic field in the gap between them.
30 exam-style questions on Edexcel GCSE Physics 12.1 Magnets and magnetic fields. Each one has a worked solution and a mark scheme showing where the marks go.