logo

CuriousTab

CuriousTab

Discussion


Home Electronics and Communication Engineering Measurements and Instrumentation See What Others Are Saying!
  • Question
  • Assertion (A): De sauty's bridge is suitable only for pure capacitor.

    Reason (R): Capacitors are mostly perfect.


  • Options
  • A. Both A and R are true and R is correct explanation of A
  • B. Both A and R are true but R is not correct explanation of A
  • C. A is true R is false
  • D. A is false R is true

  • Correct Answer
  • A is true R is false 

    Explanation
    Capacitors are mostly imperfect.

    More questions

    • 1. Consider the following statements (L is the length of array between centres of end antennas and A is wave-length)

      1. Width of major lobe between nulls of broad side array and end fire array are different.
      2. Directive gain of broadside array and end fire array are different.
      3. Directive gain of broadside array is 4
      Which of the above statements are correct?

    • Options
    • A. 1, 2 and 3
    • B. 1 and 2 only
    • C. 1 only
    • D. 1 and 3 only
    • Discuss
    • 2. The two terms used to describe performance of a directional coupler are

    • Options
    • A. coupling and directivity
    • B. gain and coupling
    • C. gain and directivity
    • D. gain and isolation
    • Discuss
    • 3. In the circuit of figure, the switch is closed at t = 0. At t = 0+ the current through C is

    • Options
    • A. 4 A
    • B. 2.5 A
    • C. 3.1 A
    • D. 0
    • Discuss
    • 4. A wave is propagated in a waveguide at frequency of 9 GHz and separation is 2 cm between walls calculate the phase velocity for dominant mode.

    • Options
    • A. 3 x 108 m/sec
    • B. 5 x 108 m/sec
    • C. 1.5 x 108 m/sec
    • D. 9 x 108 m/sec
    • Discuss
    • 5. When a dielectric material is subjected to alternating field, the absorption of energy by the material from the field is given by the imaginary part of polarizability.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. If the number of atoms per unit volume of a monoatomic gas changes, the dielectric constant still remains constant.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. Nickel is a non-magnetic material.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. In a single phase full wave regulator feeding a resistive load, the average current over one full cycle

    • Options
    • A. is always zero
    • B. cannot be zero
    • C. may be sometimes zero
    • D. is always positive
    • Discuss
    • 9. The hysteresis phenomenon in ferromagnetic materials exists at all temperatures.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. In a series inverter supplying a load resistance R, the commutating elements L and C should be such that

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss


    Comments

    There are no comments.

Enter a new Comment