logo

CuriousTab

CuriousTab

Discussion

Home ‣ Electronics ‣ Magnetism and Electromagnetism See What Others Are Saying!
  • Question

  • ___ is the ability of a material to remain magnetized after removal of the magnetizing force.


  • Options
  • A. Reluctance
  • B. Hysteresis
  • C. Retentivity
  • D. Induction

  • Correct Answer
  • Retentivity 

    • More questions

    • 1. 

      In the given circuit, R1 equals _____.


    • Options
    • A. 100 kΩ
    • B. 200 kΩ
    • C. 300 kΩ
    • D. More information is needed to find R1.
      • Discuss
    • 2. The ability of a material to maintain a magnetized state (without the presence of a magnetizing force) is called retentivity.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. 

      This circuit is a setup for


    • Options
    • A. an antilog amplifier
    • B. a constant-current source
    • C. an instrumentation amplifier
    • D. an isolation amplifier
      • Discuss
    • 4. 

      The voltage across the inductor is ______ in the given circuit.


    • Options
    • A. 6.5 V
    • B. 12.4 V
    • C. 14 V
    • D. 50 V
      • Discuss
    • 5. The phase angle of an RC series circuit is = invtan (XC/R) = invtan (VC/VR).

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. A digital logic device used as a buffer should have what input/output characteristics?

    • Options
    • A. high input impedance and high output impedance
    • B. low input impedance and high output impedance
    • C. low input impedance and low output impedance
    • D. high input impedance and low output impedance
      • Discuss
    • 7. To reduce the number of pins on the IC package, manufacturers often use ___________.

    • Options
    • A. MOSFET architecture
    • B. address multiplexing
    • C. address decoding
    • D. address demultiplexing
      • Discuss
    • 8. If a sine wave signal is 100 mV peak-to-peak, how many volts would be measured by a voltmeter?

    • Options
    • A. 14.14 mV
    • B. 35.4 mV
    • C. 63.7 mV
    • D. 70.7 mV
      • Discuss
    • 9. 

      In the given circuit, what is RUNK equal to if RV must be adjusted to 1,232 Ω in order to balance the bridge?


    • Options
    • A. 220 Ω
    • B. 6,899 Ω
    • C. 1,232 Ω
    • D. More information is needed in order to find RUNK.
      • Discuss
    • 10. Current cannot flow to ground through a(n) ________.

    • Options
    • A. mechanical ground
    • B. ac ground
    • C. virtual ground
    • D. virtual short
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.