logo

CuriousTab

CuriousTab

Discussion

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

  • When a 200 Ω load resistor is connected across the secondary winding of a transformer with a turns ratio of 4, the source "sees" a reflective load of


  • Options
  • A. 50 Ω
  • B. 12.5 Ω
  • C. 800 Ω
  • D. 0 Ω

  • Correct Answer
  • 12.5 Ω 

    • More questions

    • 1. When converting 7,000 nA to microamperes, the result is

    • Options
    • A. 0.007 ľA
    • B. 0.7 ľA
    • C. 700 ľA
    • D. 7 ľA
      • Discuss
    • 2. A series circuit has a 24 V source and a total resistance of 120 Ω. The current through each resistor is

    • Options
    • A. 24 mA
    • B. 200 mA
    • C. 120 mA
    • D. 20 mA
      • Discuss
    • 3. In a parallel circuit, the branch with the lowest resistance has the most current.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. How many degrees are there in Π/3 rad?

    • Options
    • A. 6°
    • B. 60°
    • C. 180°
    • D. 27°
      • Discuss
    • 5. In an electric circuit, the reaction of a circuit to a given pulse input is known as the pulse response.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. When an open circuit occurs in a parallel branch, the total resistance decreases.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. The quantity 43 × 10-3 is the same as

    • Options
    • A. 0.043
    • B. 0.430
    • C. 430
    • D. 43,000
      • Discuss
    • 8. The resistor voltage is always out of phase with the current.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. Transistors act basically as voltage sources.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. At a certain frequency, the output voltage of a filter is 6 V and the input is 12 V. The voltage ratio in decibels is

    • Options
    • A. 6.02 dB
    • B. ?6.02 dB
    • C. 12.04 dB
    • D. ?12.04 dB
      • Discuss

    Comments

    Avatar
    Quincy Lomax
    Are you looking for motor control products like hysteresis brakes, tensioners or motor dynamometer, industrial V belt, PU belt, Timing belts? Our belts and simple motor test system for torque, speed and power with own controller and software We even go further to take some customized or sample orders (at our own cost) that nobody wants to do as it is not profitable, but just for improving our technology and gaining experience for the past 18 years. Send us your requirement or samples, we will do it better or cheaper! Accurate and Reliable! I am looking forward to hearing any comment from you. Thank you and have a nice day! Best Regards, Josephine Valid Belt Limited 8F, Leader Industrial Centre, Fo Tan, Hong Kong Website: Whatsapp: 852-64628287 Email: info@
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ŠCuriousTab. All rights reserved.