electronics-inductors Related Question Answers
51. What is the total inductance of a 5 H and a 100 mH coil connected in parallel?
52. A transformer is used:
53. Which of the following is NOT one of the three major types of fixed inductor?
54. What is the impedance of a 1 kHz series RL circuit when R and XL are both 1000 ohms?
56. When an electromagnet reaches maximum strength, it is considered to be:
57. You could decrease the time constant of an RL circuit by
58. Indication of transformer primary and secondary voltage relationships is accomplished by:
59. As a generator armature passes the 270 degree point, the induced voltage is:
60. A value of "ten to the eighth power magnetic lines of force" is for the term:
61. A change of one ampere per second in an inductor that induces a voltage of one volt is considered as which unit value?
62. What is the name of the part inside a relay that is moved by the action of the electromagnet?
63. If the primary of a 4:1 turns transformer dissipates 5 W, what is the secondary power?
65. When used as a filter, an inductor is
66. A loaded transformer will achieve mutual induction when:
67. Which transformer turns ratio is needed to match two 16-ohm parallel devices to an output of 22.2 ohms?
68. A transformer will have:
69. What is the phase angle of a 24 Vac parallel RL circuit when R = 45 ohms and XL = 1100 ohms?
71. What happens when moving expanding lines of force encounter a conductor?
72. Fixed transformers have:
73. In a B-H curve, magnetizing force is equal to:
74. Which of the following represents a true equivalent of an inductor?
75. In a transformer, what will happen to the primary current if the secondary magnetic field increases?
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