The circuit is supplied with 24 VAC at 2000 Hz. What is the inductive reactance of the inductor? A. 386.2 Ω B. 226.4 Ω C. 125.6 Ω D. 442.6 Ω 12. What is the inductive reactance of a 2 H inductor in a 60 Hz, AC circuit? A. 0.08 Ω B. 948 Ω C. 753.60 Ω D. 120 Ω 13. What is the inductive reactance of a 0.5 H inductor at a frequency of 1.985 kHz? A. 5024 Ω B. 2234 Ω C. 800 Ω D. 6228 Ω 14. Which of the following denotes impedance? A. H B. Z C. XL D. R 15. What is the parallel impedance of the circuit shown in the figure? A. 64.9 Ω B. 38.3 Ω C. 100 Ω D. 32.65 Ω 16. What is the total current (IT ) of the circuit shown in the figure? A. 1.71 A B. 1.31 A C. 1.50 A D. 0.88 A 17. A 6 mH, a 2 mH, and a 10 mH inductor are placed in series with a 1000 Ω resistor in a circuit. The circuit has a source voltage of 60 VAC at 1000 Hz. What is the total inductive reactance of this circuit? A. 93.80 Ω B. 86.42 Ω C. 113.04 Ω D. 121.64 Ω 18. What is the inductive reactance of a 2 mH inductor at a frequency of 1000 Hz? A. 20.25 Ω B. 12.56 Ω C. 68.3 Ω D. 204.4 Ω 19. A series circuit contains a 30 mH inductor and a 200 Ω resistor. What is the total circuit current (rounded) if the applied voltage is 60 V and the frequency is 1000 Hz? A. 0.22 A B. 0.84 A C. 1.24 A D. 0.44 A 20. What is the inductive reactance of a 0.5 H inductor connected with a 1000 Ω resistor in an AC circuit supplied with 48 VAC at 100 Hz? A. 150.72 Ω B. 314 Ω C. 0.31 Ω D. 500 Ω 21. A parallel circuit has a resistance of 280 Ω and an inductive reactance of 360 Ω. What is this circuit’s impedance? A. 221.02 Ω B. 540 Ω C. 368 Ω D. 191.80 Ω 22. What is the time constant of a 2 mH inductor placed in series with a 400 Ω resistor? A. 0.8 s B. 5 μs C. 0.6 s D. 5 ms 23. What is the inductive reactance of the circuit shown in the figure? A. 41.45 Ω B. 34.54 Ω C. 6.91 Ω D. 41,448 Ω 24. If an 80 mH inductor is in series with a 220 Ω resistor in a circuit with a source frequency of 1000 Hz, what will be the phase angle (rounded) of the current with respect to the voltage? A. 66° B. 70° C. 48° D. 50° End of exam 25. What is the current through the inductor shown in the figure? A. 1.45 A B. 1.21 A C. 0.450 A D. 450.50 A

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