logo

CuriousTab

CuriousTab

Discussion


Home Electronics and Communication Engineering Networks Analysis and Synthesis See What Others Are Saying!
  • Question
  • In the figure shown, A1, A2, A3 are identical Ammeters. If A1 and A3 read 5 and 13 A respectively, reading of A2 will be
    In the figure shown, A1, A2, A3 are identical Ammeters. If A1 and A3 read 5 and 13 A respectively, r


  • Options
  • A. 8
  • B. 13 A
  • C. 18
  • D. 12 A

  • Correct Answer
  • 12 A 

    Explanation
    A2 = 132 - 25 ⟹ 12 A.

    More questions

    • 1. A negative feedback system has . The closed loop system is stable for

    • Options
    • A. K > 20
    • B. 15 < K < 19
    • C. 8 ? K ? 14
    • D. K < 6
    • Discuss
    • 2. The communication satellite INSAT-IB had to take up the job of INSAT-IA because the latter collapsed within __________ months of its launch.

    • Options
    • A. 12
    • B. 20
    • C. 5
    • D. 36
    • Discuss
    • 3. In a superheterodyne receiver

    • Options
    • A. the IF stage has better selectivity than RF stage
    • B. the RF stage has better selectivity than IF stage
    • C. the RF stage has same selectivity than IF stage
    • D. none of the above
    • Discuss
    • 4. Space wave may be a direct wave or wave reflected from earth.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. A duplexer is a device used to

    • Options
    • A. feed more than one receiver from a single antenna
    • B. connect two transmitters to the same antenna
    • C. connect a receiver and a transmitter to the same antenna
    • D. none of these
    • Discuss
    • 6. In a 3 phase semiconverter, the freewheeling diode comes into operation only if firing angle

    • Options
    • A. is zero
    • B. is 60°
    • C. is more than 60°
    • D. is more than 90°
    • Discuss
    • 7. Superheterodyne receiver can be used in

    • Options
    • A. AM
    • B. FM
    • C. SSB
    • D. All of the above
    • Discuss
    • 8. The resistance of a metallic wire would

    • Options
    • A. increase as f increase
    • B. decrease as f increase
    • C. remains the same at all frequencies
    • D. increase with f up to a certain frequency and then decrease
    • Discuss
    • 9. In 180° mode of operation of a 3 phase bridge inverter, two thyristors conduct at one time.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. An SCR has a turn on time of 4 ?s. The gate pulse should have a duration of about

    • Options
    • A. 2 ?s
    • B. 5 ?s
    • C. 20 ?s
    • D. 50 ?s
    • Discuss


    Comments

    There are no comments.

Enter a new Comment