Chapter 14-Electrical Principles 367
Review
1. What are the three fundamental particles contained in an atom?
2. What is the law of charges?
3. What is the difference between a conductor and an insulator?
4. Define electron flow as well as the two conventions used to describe it.
5. Define voltage, current, and resistance and list the unit of measure for each.
6. What kind of electrical device converts AC voltage to DC voltage?
7. Conductors are insulated and rated according to what system?
8. Define power and describe the power formula.
9. List the three types of electric circuit connections.
10. Why are magnetic forces strongest at the ends of a magnet?
11. Define alternating current and explain how it is generated.
12. Define power distribution and list the steps in the distribution system.
13. What is the purpose of the National Electrical CodeĀ® (NEC) and how often is it updated?
14. Describe the procedure when handling a victim of an electrical shock accident.
15. List the three types of approach boundaries.