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, covering 12.1.1 Magnetic poles, 12.1.2 Magnetic materials; permanent and induced magnets, 12.1.3 Magnetic fields, and 12.1.4 Plotting compasses and the Earth's magnetic field. Each one has a worked solution and a mark scheme showing where the marks go.