GCSE Physics
Magnetism & Electromagnetism
Magnetism & Electromagnetism is a core strand in Physics. Work through the topics below in any order, or follow your course — each guide includes explanations, common mistakes and exam-style practice.
Topic guides
Magnetic Fields (GCSE)
A magnetic field is a region where a magnetic force can be detected.
Open guidePermanent & Induced Magnets
A permanent magnet is a material that produces its own magnetic field and retains its magnetic properties (e.g., a bar magnet).
Open guideElectromagnets
An electromagnet is a temporary magnet made by passing an electric current through a coil of wire.
Open guideMotor Effect
The motor effect is the force experienced by a current-carrying wire when it is placed in a magnetic field.
Open guideLoudspeakers & Microphones
Loudspeakers and microphones are devices that convert between sound waves and electrical signals.
Open guideElectromagnetic Induction
Electromagnetic induction is the process of generating a potential difference (and a current if there is a complete circuit) in a conductor by changing the magn
Open guideTransformers
A transformer is a device that changes the potential difference of an alternating current (AC).
Open guideNational Grid
The National Grid is the network of cables and transformers that connects power stations to consumers across the UK.
Open guide
Revision strategy
Students often slip on the details explained in our guides — read the “common mistakes” section in each topic.
- Alternate between reading a guide and doing timed questions — don’t only re-read notes.
- Return to this hub anytime; new guides appear automatically as we publish them.