Scenario - As part of your technician training, you are required to learn how electricity is produced, and this begins with understanding magnetism and its effects.
Task 1 - Describe, with the aid of diagrams, the magnetic field produced by a permanent magnet or an electromagnet.
Task 2 -
For the graph above describe the relationship between the flux density and field strength for cast iron and one other metal shown on B/H graph. Your answer should include references to the coercive force for these materials.
Task 3 -
a. Describe the principle of electromagnetic induction.
b. Using diagrams, describe at least 2 applications of electromagnetic induction used in the real world.