1. If the frequency is halved and the resistance is doubled, the impedance of a series RL circuit A. Doubles B. Halves C. Remains constant D. Cannot be determined without values Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
2. A filter passes certain frequencies and rejects others. A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
3. When the frequency of the voltage applied to a series RL circuit is decreased, the impedance decreases A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
4. When the frequency is decreased, the impedance of a parallel RL circuit A. Increases B. Decreases C. Remains constant D. Is not a factor Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
5. In an RL circuit, the impedance is determined by both the resistance and the inductive reactance combined. A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
6. A 1.5 kΩ resistor and a coil with a 2.2 kΩ inductive reactance are in series across an 18 V ac source. The power factor is A. 564 B. 0.564 C. 6.76 D. 55.7 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
7. Total current in an RL circuit always lags the source voltage. A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
8. When the resistor voltage in a series RL circuit becomes less than the inductor voltage, the phase angle A. Increases B. Decreases C. Is not affected D. Cannot be determined Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
9. The phase angle (θ) of a series RL circuit varies directly with frequency. A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
10. A 140 Ω resistor is in parallel with an inductor having 60 Ω inductive reactance. Both components are across a 12 V ac source. The magnitude of the total impedance is A. 5.51 Ω B. 55.15 Ω C. 90 Ω D. 200 Ω Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
