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Home ‣ Electrical Engineering ‣ Time Response of Reactive Circuits See What Others Are Saying!
- Question
In an RC differentiator, responding to repetitive pulses, the average value of the output
Options- A. is zero
- B. is equal to the input voltage
- C. is 63 percent of the input voltage
- D. cannot be determined
- Correct Answer
- is zero
- 1. Voltage is measured in
Options- A. volts
- B. farads
- C. watts
- D. ohms Discuss
- 2. A 0.01 µF capacitor equals how many picofarads?
Options- A. 100 pF
- B. 1,000 pF
- C. 10,000 pF
- D. 100,000 pF Discuss
- 3. When the frequency of the voltage applied to a series RC circuit is increased, the phase angle
Options- A. increases
- B. decreases
- C. remains the same
- D. becomes erratic Discuss
- 4. There is a total of 800 mA of current into four parallel resistors. The currents through three of the resistors are 40 mA, 70 mA, and 200 mA. The current through the fourth resistor is
Options- A. 490 mA
- B. 800 mA
- C. 310 mA
- D. 0 A Discuss
- 5. A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty cycle is
Options- A. 25%
- B. 50%
- C. 1%
- D. 100% Discuss
- 6. You are measuring the current in a circuit that is operated on an 18 V battery. The ammeter reads 40 mA. Later you notice the current has dropped to 20 mA. How much has the voltage changed?
Options- A. 9 V
- B. 900 mV
- C. 0 V
- D. 18 V Discuss
- 7. A certain amplifier has 600 Ω internal resistance looking from its output. In order to provide maximum power to a 4 Ω speaker, what turns ratio must be used in the coupling transformer?
Options- A. 8
- B. 0.8
- C. 0.08
- D. 80 Discuss
- 8. In a Y-connected generator, there is a 120° difference between each line voltage and the nearest phase voltage.
Options- A. True
- B. False Discuss
- 9. When the frequency of the voltage applied to a series RC circuit is decreased, the impedance
Options- A. increases
- B. decreases
- C. remains the same
- D. doubles Discuss
- 10. The maximum output voltage of a certain low-pass filter is 15 V. The output voltage at the critical frequency is
Options- A. 0 V
- B. 15 V
- C. 10.60 V
- D. 21.21 V Discuss
More questions
Correct Answer: volts
Correct Answer: 10,000 pF
Correct Answer: decreases
Correct Answer: 490 mA
Correct Answer: 25%
Correct Answer: 9 V
Correct Answer: 0.08
Correct Answer: False
Correct Answer: increases
Correct Answer: 10.60 V
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