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  • Question

  • Which of the following are true for magic tee in the given figure select the answer as per given codes
    Which of the following are true for magic tee in the given figure select the answer as per given cod

    1. S13 = S23
    2. S14 = S24
    3. S12 = 0
    4. S34 = 0


  • Options
  • A. 1, 2 and 3
  • B. 1, 2 and 4
  • C. 2, 3 and 4
  • D. 1, 3 and 4

  • Correct Answer
  • 2, 3 and 4 

    • More questions

    • 1. The attenuation characteristics of a loaded line is similar to that of

    • Options
    • A. low pass filter
    • B. high pass filter
    • C. band pass filter
    • D. band stop filter
      • Discuss
    • 2. In a single phase full wave regulator feeding R-L load, short gate pulse are not suitable.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. The household radio receiver uses

    • Options
    • A. synchronous
    • B. envelope detector
    • C. radio detector
    • D. none of the above
      • Discuss
    • 4. Which chopper circuit uses saturable reactor?

    • Options
    • A. Auxiliary commutated
    • B. Jones chopper
    • C. Morgan chopper
    • D. Load commutated
      • Discuss
    • 5. For an illumination control circuit it is advisable to use a matched TRIAC-DIAC pair.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. Fibers have numerical aperture (NA) in the range of 0.15 to 0.4 Fibers with higher NA value would have

    • Options
    • A. reduced losses
    • B. high bandwidth
    • C. reduced losses and low bandwidth
    • D. more losses and low bandwidth
      • Discuss
    • 7. Radar reciever has high sensitivity and low noise figure

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. A single phase electric heater uses phase controlled thyristors. The firing angle is 90°. The degree of heating is

    • Options
    • A. 25% of maximum
    • B. 50% of maximum
    • C. 75% of maximum
    • D. none of the above
      • Discuss
    • 9. A characteristic property of crystal is its periodicity of structure.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. The number of distinct Boolean expression of 4 variables is

    • Options
    • A. 16
    • B. 256
    • C. 1024
    • D. 65536
      • Discuss

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