logo

CuriousTab

CuriousTab

Discussion

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

  • Vout = 500 mV, and Vin = 1.3 V. The ratio Vout/ Vin expressed in dB is


  • Options
  • A. 0 dB
  • B. 8.30 dB
  • C. ?8.30 dB
  • D. 0.8 dB

  • Correct Answer
  • ?8.30 dB 

    • More questions

    • 1. The true power in a capacitor is zero.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. Parallel resistors are connected between the same two points.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. A smaller-value load resistor will cause the output voltage to change more than a larger-value one.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. 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
    • 5. A reflective load is a load as it appears to the source in the primary of a transformer.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. A transformer changes ac to dc.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. Series aiding is a term sometimes used to describe voltage sources of the same polarity in series.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. The number 4,500,000 can be expressed as

    • Options
    • A. 4,500 × 106
    • B. 4.5 × 106
    • C. 4.5 × 10-3
    • D. either 4,500 × 104 or 4.5 × 106
      • Discuss
    • 9. Two 1.5 V cells are connected series opposing across two 100 Ω resistors in series. Total current flow is

    • Options
    • A. 15 mA
    • B. 5 mA
    • C. 2 mA
    • D. 0 A
      • Discuss
    • 10. The branch current method uses

    • Options
    • A. Kirchhoff's voltage and current laws
    • B. Thevenin's theorem and Ohm's law
    • C. Kirchhoff's current law and Ohm's law
    • D. the superposition theorem and Thevenin's theorem
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.