Edexcel IGCSE Physics topic guide
Edexcel IGCSE Physics Magnetism and electromagnetism questions
Magnetism and electromagnetism covers magnetic fields, electromagnets, motor effects, induction, generators, transformers and electricity transmission.
Magnetism and electromagnetism topic overview
Magnetism and electromagnetism covers magnetic fields, electromagnets, motor effects, induction, generators, transformers and electricity transmission.
Draw field directions clearly, apply the relevant hand rule before describing motion, and distinguish the motor effect from electromagnetic induction.
Question types in magnetism and electromagnetism
- Magnetic field-pattern diagrams and comparisons of magnetic materials.
- Motor-effect questions using field, current and force directions.
- Induction and generator explanations based on changing magnetic fields.
- Transformer turns-ratio, current and power calculations.
Magnetism and electromagnetism subtopics
Choose a subtopic for its syllabus points, answering guidance and worked exam questions.
6.a Units
6.1 use the following units: ampere (A), volt (V) and watt (W)
6.b Magnetism
6.2 know that magnets repel and attract other magnets and attract magnetic substances
6.c Electromagnetism
6.8 know that an electric current in a conductor produces a magnetic field around it
6.d Electromagnetic induction
6.15 know that a voltage is induced in a conductor or a coil when it moves through a magnetic field or when a magnetic field changes through it and describe the factors that affect the size of the induced voltage