Magnetic field of a coil

Principle

This experiment is designed to show the magnetic property of a coil and so bring an understanding of the role it plays in an electric motor or generator.

Benefits

• Simple design of all components, so that the student can easily recognise their function
• The possibility to set up function models gradually, so that functional relations between components can be understood
• No tools required for assembly

Tasks

Compare the magnetic field of a permanent magnet with that of a current-carrying coil.