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- Question
A series resonant band-pass filter consists of a 2 mH coil, a 0.005 µF capacitor, and a 120 Ω resistor. The winding resistance of the coil is 12 Ω. The output voltage is taken off the resistor. Input voltage is 12 Vrms. What is the output voltage magnitude at the center frequency (f0)?
Options- A. 10.9 V
- B. 1.09 V
- C. 1.1 V
- D. 12 V
- Correct Answer
- 10.9 V
- 1. A short in a series circuit prevents current.
Options- A. True
- B. False Discuss
- 2. Three hundred joules of energy are consumed in 15 s. The power is
Options- A. 2,000 W
- B. 2 W
- C. 20 W
- D. 200 W Discuss
- 3. An autotransformer is one in which the primary and secondary are automatically coupled.
Options- A. True
- B. False Discuss
- 4. The tesla is the unit of magnetic flux.
Options- A. True
- B. False Discuss
- 5. Watt's law states the relationships of power to energy.
Options- A. True
- B. False Discuss
- 6. The capacitor voltage always leads the current by 90°.
Options- A. True
- B. False Discuss
- 7. If a 6 V and a 9 V source are connected series aiding, the total voltage is
Options- A. 6 V
- B. 9 V
- C. 3 V
- D. 15 V Discuss
- 8. Total current in an RC circuit always leads the source voltage.
Options- A. True
- B. False Discuss
- 9. In 40 kW, there are
Options- A. 0.4 mW
- B. 40,000 W
- C. 400 W
- D. 5,000 W Discuss
- 10. Energy is stored by a capacitor in a magnetic field.
Options- A. True
- B. False Discuss
More questions
Correct Answer: False
Correct Answer: 20 W
Correct Answer: False
Correct Answer: False
Correct Answer: False
Correct Answer: False
Correct Answer: 15 V
Correct Answer: True
Correct Answer: 40,000 W
Correct Answer: False
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