Physics Assignment – 9.3 Motors & Generators

1. Describe the operation of an induction cook top.
2. Use diagrams to explain how eddy currents are used in electromagnetic braking and in switching devices.
3. Compare and contrast the operation of a galvanometer and a loud speaker with reference to the motor effect.
4. For high voltage transmission lines, discuss insulation techniques and protection from lightning.
5. Analyse the physiological effects of high voltage transmission lines on humans.

G. Pollock

Page limit: 5 A4 pages including diagrams

Date of issue:    6/11/01                                                            Date Due: 25/2/02