A student suggests that stacking multiple identical disc magnets together will create a magnetic field that is stronger than the field of a single disc magnet. The student is provided with a wooden ruler, a small steel paperclip, and five identical disc magnets. Describe a method the student could use to test this hypothesis.
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.