logo

CuriousTab

CuriousTab

Discussion

Home ‣ Electrical Engineering ‣ Passive Filters See What Others Are Saying!
  • Question

  • A series resonant band-stop filter consists of a 68 Ω resistor, a 110 mH coil, and a 0.02 µF capacitor. The internal resistance, RW, of the coil is 4 Ω. Input voltage is 200 mV. Output voltage is taken across the coil and capacitor in series. What is the output voltage magnitude at f0?


  • Options
  • A. 1.1 mV
  • B. 11.1 mV
  • C. 111 mV
  • D. 200 mV

  • Correct Answer
  • 11.1 mV 

    • More questions

    • 1. Three lights are connected in parallel across a 120 volt source. If one light burns out,

    • Options
    • A. the remaining two will glow dimmer
    • B. the remaining two will glow brighter
    • C. the remaining two will not light
    • D. the remaining two will glow with the same brightness as before
      • Discuss
    • 2. At series resonance, the inductive reactance and capacitive reactance are never equal.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. Referring to Problem 5, how long will it take the capacitor to discharge if the internal resistance of the pulse source is 100 Ω?

    • Options
    • A. 300 µs
    • B. 600 µs
    • C. 900 µs
    • D. 1.5 ms
      • Discuss
    • 4. When the frequency of the voltage applied to a series RL circuit is increased, the phase angle

    • Options
    • A. decreases
    • B. increases
    • C. does not change
    • D. cannot be determined without values
      • Discuss
    • 5. In an RL differentiator, when the input pulse goes from its low level to its high level,

    • Options
    • A. the inductor prevents a sudden change in voltage
    • B. the inductor prevents a sudden change in current
    • C. voltage across the inductor instantly reaches 63% of input voltage
    • D. voltage across the inductor is zero
      • Discuss
    • 6. The same signal in Problem 2 is applied to an RC high-pass filter. If the reactance is zero at the input frequency, the output voltage is

    • Options
    • A. 18 V peak-to-peak
    • B. zero
    • C. 9 V peak-to-peak
    • D. 12.73 V peak-to-peak
      • Discuss
    • 7. In a series RC circuit, 12 V(rms) is measured across the resistor and 15 V(rms) is measured across the capacitor. The rms source voltage is

    • Options
    • A. 3 V
    • B. 27 V
    • C. 19.2 V
    • D. 1.9 V
      • Discuss
    • 8. Six resistors are in parallel. The two lowest-value resistors are both 1.2 kΩ. The total resistance

    • Options
    • A. is less than 6 kΩ
    • B. is greater than 1.2 kΩ
    • C. is less than 1.2 kΩ
    • D. is less than 600 Ω
      • Discuss
    • 9. The voltage induced across a certain coil is 200 mV. A 120 Ω resistor is connected to the coil terminals. The induced current is

    • Options
    • A. 1.7 mA
    • B. 16 mA
    • C. 12 mA
    • D. 120 mA
      • Discuss
    • 10. A sine wave voltage is applied across a capacitor. When the frequency of the voltage is decreased, the current

    • Options
    • A. increases
    • B. remains constant
    • C. decreases
    • D. ceases
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright İCuriousTab. All rights reserved.