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- Question
Total current in an RL circuit always lags the source voltage.
Options- A. True
- B. False
- Correct Answer
- True
- 1. A power factor of 1 indicates a purely reactive circuit, and a power factor of 0 indicates a purely resistive circuit.
Options- A. True
- B. False Discuss
- 2. The phase angle (?) of a series RL circuit varies directly with frequency.
Options- A. True
- B. False Discuss
- 3. A step-down transformer has a turns ratio less than 1.
Options- A. True
- B. False Discuss
- 4. If the voltage is stepped up, the current is stepped down, and vice versa.
Options- A. True
- B. False Discuss
- 5. A center tap (CT) is a connection at the midpoint of the secondary winding of a transformer.
Options- A. True
- B. False Discuss
- 6. In a lag network, the output voltage lags the input voltage in phase.
Options- A. True
- B. False Discuss
- 7. The resistor voltage in an RL circuit is always out of phase with the current.
Options- A. True
- B. False Discuss
- 8. A filter passes certain frequencies and rejects others.
Options- A. True
- B. False Discuss
- 9. In an RL circuit, the impedance is determined by both the resistance and the inductive reactance combined.
Options- A. True
- B. False Discuss
- 10. The power factor indicates how much of the apparent power is reactive power.
Options- A. True
- B. False Discuss
RL Circuits problems
Search Results
Correct Answer: False
Correct Answer: True
Correct Answer: True
Explanation:
Ns/Np is known as the turns ratio.
In step down transformer the number of turns in secondary winding (Ns) will be less than the number of turns in primary (Np).
Therefore, the ratio will be less than 1 for step down transformer.
Ex: Np = 10, Ns = 5; Turns ratio = 5/10 = 0.5.
In step down transformer the number of turns in secondary winding (Ns) will be less than the number of turns in primary (Np).
Therefore, the ratio will be less than 1 for step down transformer.
Ex: Np = 10, Ns = 5; Turns ratio = 5/10 = 0.5.
Correct Answer: True
Correct Answer: True
Correct Answer: True
Correct Answer: False
Correct Answer: True
Explanation:
Filters that are designed to remove certain frequencies and allow others.
Band- pass filter - only frequencies in a frequency band are passed.
Notch filter - rejects just one specific frequency.
Correct Answer: True
Correct Answer: False
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