Unit 7 - Magnetism and electromagnetism

 

 

7.1  Permanent and induced magnetism, magnetic forces and fields

 

7.1.1  Poles of a magnet

 

7.1.2  Magnetic fields

 

 

7.2  The motor effect

 

7.2.1  Electromagnetism

 

7.2.2  Fleming's left hand rule (Higher only)

 

7.2.3  Electric motors (Higher only)

 

7.2.4  Loudspeakers (Physics only)

 

 

7.3  Induced potential, transformers and the National Grid (Physics only)

 

7.3.1  Induced potential

 

7.3.2  Uses of the generator effect

 

7.3.3  Microphones

 

7.3.4  Transformers