SCI 1901E - Energy
Chapter Objectives - Chapter 11: Electromagnetism
Lesson notes:
To understand the production of electricity, we will spend time considering the relationship between electricity and magnetism. To understand transmission of electricity, we will study transformers and apply concepts learned in the last lesson.
Objectives:
1. Be able to discuss physical phenomena associated with a magnet.
2. Be able to describe the relationship between current and an electromagnet.
3. Be able to state and discuss the meaning of Faradays law of electromagnetic induction.
4. Be able to explain how motors and generators work.
5. Be able to explain the reason for the use of AC currents in the transmission of electricity.
6. Be able to describe the purpose of transformers.
7. Be able to describe possible biological effects of high-voltage transmission lines.
Vocabulary:
none
Homework:
Text errata:
Page 362, 2nd sentence in second paragraph: Cosmic ray bombardment does not provide the majority of the natural ionizing radiation we receive. As shown in Chapter 15, cosmic radiation accounts for about 10% of the natural ionizing radiation we receive.
Page 364, Figure 11-8: The polarity for a battery in the figure is incorrect. The longer of the two lines of the symbol is associated with the positive terminal of the battery.
Additional sources of information:
A site devoted to Nikola Tesla is provided by Bogdan R. Kosanovic. Tesla's contributions to our world are little known outside of the discipline of electrical engineering, but they are tremendous.
A short biography of Michael Faraday with links to additional information is provided by About.com.
A nice site devoted to Thomas Edison is provided by ThomasEdison.com
Last update: April 02, 2009