1. |
Describe a gold-leaf electroscope. State how you would determine the kind of electricity in a body by its means. Many electroscopes and electrometers have a fixed charge of electricity. State the advantage of such instruments. |
2. |
Describe the distribution of electricity on a cone, a sphere, and on a disc. Is the potential the same at all points of a charged cone? |
3. |
Describe fully the action of the points in an electric machine and in lightning conductors. Has heat any effect upon the action of points? |
4. |
Describe some form of continuous electric machine in which induction instead of friction develops electricity. |
5. |
Describe various simple ways of producing a current of electricity. What is the especial advantage of a Groves' battery? |
6. |
What are the several ways in which a current of electricity may be made to show itself? What are the laws of electrolysis? |
7. |
Describe and state the properties of an electro-magnet and describe some form of electro-magnetic engine. |
8. |
Give an account of experiments to illustrate the elementary principles of magneto electricity. Describe Bell's telephone. |
9. |
How is the resistance of a wire usually measured? State Ohm's law, and make a sketch of the arrangements of Wheatstone's bridge. |
10. |
Describe any form of dynamo such as is used for producing the electric light. |