Physics › Magnetic fields

Magnetic fields

Moving charge creates magnetism, and changing magnetism moves charge: the physics behind motors, generators and transformers.

Year 13 · 6 topics.

• Magnetic flux density and the force on a wire
• Force on a moving charge
• Magnetic flux and flux linkage
• Electromagnetic induction: Faraday and Lenz
• Alternating currents
• Transformers