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U.S. GOVERNMENT PRINTING OFFICE; 1945 - 618779



 

CHAPTER 12 QUIZ

ELECTROMAGNETISM



1. Is the direction of flux correctly labeled for the electromagnets in the following drawing?
 


2. Which of these coils is the strongest?
         A has 22 turns and 5 amperes.
         B has 37 turns and 3 amperes.
         C has 17 turns and 9 amperes.
3. How can you increase a coil's strength without changing the construction?


Return to Chapter 12
















CHAPTER 12 ANSWERS

ELECTROMAGNETISM



1. A: correct.  B: incorrect.  C: incorrect.  D: correct.
2. C is the strongest.

3. Increase the coil's current.


 

 


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