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ELECTRICAL ACTION
1. What is meant by the term "polarity"?
2. Insofar as has to do with electrical action, are there ever
any more than two wires in any electric circuit ?
3. Explain why a 3-wire circuit is only a 2-wire so far as con
cerns electrical action.
4. Of what does each electric circuit consist?
5. Do positive and negative wires represent the generator poles
at any point of their entire length?
6. What, if any, difference is there in connecting a motor to
the poles of a generator and to wires attached to a point removed from the poles?
7. How much is now positively known about electrical action?
8. Just what does polarity represent?
9. Explain how work is performed jn steam engine cylinders.
10. What is consumed in the operation of producing power?
11. What does the compression of steam in a boiler do?
12. In what apparent condition is electricity stored in or on
wires ?
13. Is light seen in an electric bulb electricity?
14. What happens to pressure when positive and negative amal
gamate or join?
15. What is produced when positive and negative amalgamate
or join?
16. Does current generated in a brttery <>r dynamo seek earth?
17. What is the only thing positive or negative electricity has
affinity for?
18. What would be the result if positive and negative of two dif
ferent power sources were contacted?
19. Were it possible to completely insulate the entire negative
side of a 5,000 volt generator from earth, can one stand on wet earth and handle the positive of the same power source with bare hands ? Ja& .
Electrical Generai ion. page 9
20. Why is it necessary that projectionists have thorough knowl
edge of generate
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