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- Question
A filter passes certain frequencies and rejects others.
Options- A. True
- B. False
- Correct Answer
- True
ExplanationFilters 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.
RL Circuits problems
Search Results
- 1. The resistor voltage in an RL circuit is always out of phase with the current.
Options- A. True
- B. False Discuss
Correct Answer: False
- 2. In a lag network, the output voltage lags the input voltage in phase.
Options- A. True
- B. False Discuss
Correct Answer: True
- 3. Total current in an RL circuit always lags the source voltage.
Options- A. True
- B. False Discuss
Correct Answer: True
- 4. 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
Correct Answer: False
- 5. The phase angle (?) of a series RL circuit varies directly with frequency.
Options- A. True
- B. False Discuss
Correct Answer: True
- 6. In an RL circuit, the impedance is determined by both the resistance and the inductive reactance combined.
Options- A. True
- B. False Discuss
Correct Answer: True
- 7. The power factor indicates how much of the apparent power is reactive power.
Options- A. True
- B. False Discuss
Correct Answer: False
- 8. The impedance of an RL circuit varies inversely with frequency.
Options- A. True
- B. False Discuss
Correct Answer: False
- 9. In an RL circuit, part of the power is resistive and part is reactive.
Options- A. True
- B. False Discuss
Correct Answer: True
- 10. In an RC low-pass filter, the output voltage is taken across the resistor and the output lags the input voltage.
Options- A. True
- B. False Discuss
Correct Answer: False
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