# NEETS Module 02 Assignment 2: Inductance – Answers

(Last Updated On: January 10, 2020)

Below are the answers key for the Textbook Assignment: Chapter 2, “Inductance” from the Module 2 — Introduction to Alternating Current and Transformers in Navy Electricity and Electronics Training Series (NEETS) . Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.

1. C. Changes in current

2. B. H

3. D. Henry

4. B. 2.0 henries

5. D. Inertia

6. D. Electromotive

7. A. They are dislodged from orbit

8. D. All of these

9. D. Counter electromotive force

10. C. It opposes either a rise or a fall in current

11. B. The left-hand rule for generators

12. A. conductor

13. B. The collapsing magnetic field

14. A. An ac circuit

15. A. By core type

16. C. soft iron

17. B. To support the windings

18. C. Conductor tensility

19. D. four

20. A. Large diameter coils have more wire and thus more flux

21. D. Four

22. B. (a) Decrease, (b) by 1/2

23. D. High permeability and low reluctance

24. A. Magnetic flux

25. B. flux linkage

26. C. Flux linkage

27. A. L

28. C. The values are changing

29. C. 3.3 henries

30. D. 15.0 volts

31. A. (a) 10,000 mH, (b) 10,000,000 μH

41. A. 63.2%

42. B. Five

43. B. 17.3 amperes

44. D. 4.7 amperes

45. B. 19 mA

46. D. 0.0133 seconds

47. B. 12 ohms

48. B. 0.05 second

49. C. Because all inductors have resistance which dissipates power

50. C. P = E/R2

51. C. Hysteresis loss

52. C. Hysteresis loss

53. B. Whenever the flux of one inductor causes an emf to be induced in another inductor

54. B. Physical dimensions of the coils

55. D. The magnetic flux ratio linking the coils

56. A. 4.2 μH

57. C. 12.5 μH

58. B. 18.1 μH

59. C. 0.98 μH

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