Questions 1 to 25: Select the best answer to each question. Note that a question and its answers may be split across a page break, so be sure that you have seen the entire question and all the answers before choosing an answer. 1. A 10 mH inductor and a 100 Ω resistor are connected in parallel. The circuit is supplied with 24 VAC at 2000 Hz. What is the impedance (rounded) of the circuit? A. 57.38 Ω B. 78.23 Ω C. 108.71 Ω D. 98.16 Ω 2. A circuit contains a 60 mH and a 40 mH inductor connected in parallel. The circuit has a source voltage of 100 VAC and a frequency of 1000 Hz. What is the total inductive reactance (rounded) of the circuit? A. 173 Ω B. 194 Ω C. 212 Ω D. 151 Ω 3. What is the total inductive reactance in the circuit shown in the figure? A. 100.48 Ω B. 60.29 Ω C. 16 Ω D. 48.2 Ω 4. What is the total circuit current shown in the figure? A. 3.5 A B. 0.28 A C. 0.75 A D. 2.5 A 5. A 100 mH inductor is placed in parallel with a 100 Ω resistor in a circuit. The circuit has a source voltage of 30 VAC and a frequency of 200 Hz. What is the current through the inductor (rounded)? A. 0.42 A B. 0.24 A C. 0.36 A D. 0.48 A 6. What is the total inductance of the circuit shown in the figure? A. 0.48 H B. 0.16 H C. 0.63 H D. 1.0 H 7. What is the time constant of a 20 mH inductor in series with a 230 Ω resistor? A. 86.96 s B. 86.96 μs C. 900 ms D. 0.09 s 8. Which of the following denotes inductive reactance? A. XL B. Z C. R D. H 9. A 10 mH inductor and a 100 Ω resistor are connected in parallel. The circuit is supplied with 24 VAC at 2000 Hz. What is the phase angle (rounded) of this circuit? A. 49.2° B. 28.2° C. 24.6° D. 38.4° 10. What is the impedance of the circuit shown in the figure? A. 60.23 Ω B. 285.15 Ω C. 141.76 Ω D. 70.88 Ω 11. A 10 mH inductor and a 100 Ω resistor are connected in parallel. 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.

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