What is the magnitude of the phase angle of a 24 Vac parallel RL circuit when R

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Question
What is the magnitude of the phase angle of a 24 Vac parallel RL circuit when R = 45 Ω and X_L = 1100 Ω?
Options
A. 0.001�
B. 2.3�
C. 87.6�
D. 89.9�

Correct Answer

2.3�

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5. As frequency increases
Options
A. both series and parallel RL impedance decrease
B. series RL impedance decreases and parallel RL impedance increases
C. series RL impedance increases and parallel RL impedance decreases
D. both series and parallel RL impedance increase

6.
Which of the following statements is true if the frequency decreases in the circuit in the given circuit?
Options
A. The phase angle decreases.
B. V_R decreases.
C. I_T decreases.
D. V_S decreases.

7. What is the magnitude of the phase angle between the source voltage and current when a 100 mH inductor with an inductive reactance of 6 kΩ and a 1 kΩ resistor are in series with a source?
Options
A. 0.1�
B. 9.0�
C. 61.0�
D. 81.0�

8.
Which of the following statements is true if the inductor shorts out in the circuit in the given circuit?
Options
A. Each component drops 5 V.
B. The impedance equals 0 Ω.
C. The power factor equals 1.
D. The phase angle equals 90�.

9.
Which of the following statements is true if R = 100 Ω and X_L = 100 Ω in the circuit in the given circuit?
Options
A. Each component drops 5 V.
B. The impedance equals 200 Ω.
C. The power factor equals 1.
D. The phase angle equals 45�.

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