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Electricity in Motion: Current
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NAVPERS 10622 - Chapter 3 Quiz

Here is the "Electricity - Basic Navy Training Courses" (NAVPERS 10622) in its entirety. It should provide one of the Internet's best resources for people seeking a basic electricity course - complete with examples worked out. See copyright. See Table of Contents.   • U.S. Government Printing Office; 1945 - 618779

 

 

Chapter 3 QUIZ

Electricity in Motion: Current

 

 

1. How does a current flow through a wire?

2. What is the electrical unit of quantity?

3. What is the unit of measure of current strength?

4. What two things control the strength of current?

5. Why are some substances good conductors?

6. Why are some substances good insulators?

7. If the potential of any given circuit is increased, the current is always  _____________.


8. If "the resistance of any given circuit is increased, the current is always  _____________.

9. What four things affect the resistance of a conductor?

 

<answers below>

Return to Chapter 3

 


 

 

 

 

 

 

 

 

 

 

 

 

 

Chapter 3 Answers

Electricity in Motion - Current

 

1. Each-electron acts as a-force on the others. This force moves electrons through the wire step-by-step, from molecule to molecule.

2. The coulomb.

3. The ampere.

4. Potential and resistance.

5. Good conductors have many free electrons.

6. Good insulators have few or no free electrons.

7. Increased.

8. Decreased.

9. Diameter, length, material and temperature.

 

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