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  • Question

  • In an homogeneous dielectric subjected to an electric field E, the dipole moment per unit volume is ?0(?r - 1) E.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • More questions

    • 1. The commutation method in an inverter, is

    • Options
    • A. line commutation
    • B. forced commutation
    • C. either (a) or (b)
    • D. none of the above
      • Discuss
    • 2. In the given figure shows the equivalent circuit of a magic tee. If all ports are matched

    • Options
    • A. nE = nH = 2
    • B. nE = nH = 0.707
    • C. nE = 2, nH = 0.707
    • D. nH = 0.707, nH = 2
      • Discuss
    • 3. Two identical hybrid tees are joined as shown in the given figure. If 16 mW power is fed into port 1, the power output at ports 2 , 3, 1', 2', 3' respectively is

    • Options
    • A. 8, 4, 2, 2, 0 mW
    • B. 0, 8, 4, 4, 0 mW
    • C. 0, 8, 2, 2, mW
    • D. 8, 2, 4, 2, 0 mW
      • Discuss
    • 4. Which of the following should dominant wave have?

    • Options
    • A. Lowest cut off frequency
    • B. Highest cut off frequency
    • C. No attenuation
    • D. No phase shift
      • Discuss
    • 5. In a strain measuring device using a strain gauge, the output quantity is

    • Options
    • A. voltage
    • B. resistance
    • C. impedance
    • D. either (a) or (b)
      • Discuss
    • 6. For a given voltage, four heating coils will produce maximum heat when connected

    • Options
    • A. all in parallel
    • B. all in series
    • C. with two parallel pairs in series
    • D. one pair in parallel with the other two in series
      • Discuss
    • 7. In which mode of rectangular waveguide are all field components zero?

    • Options
    • A. TM00
    • B. TM11
    • C. TM01
    • D. TM10
      • Discuss
    • 8. In a microwave coaxial cable the inner conductor radius is a and inner radius of outside conductor is b. For TE11 mode the cut off wavelength is about

    • Options
    • A. a + b
    • B. p(a + b)
    • C. pa
    • D. pb
      • Discuss
    • 9. A 256 x 4 EPROM has

    • Options
    • A. 8 address pins and 4 data pins
    • B. 8 address pins and 8 data pins
    • C. 4 address pins and 8 data pins
    • D. 4 address pins and 4 data pins
      • Discuss
    • 10. A capacitor stores 0.15C at 5 V. Its capacitance is

    • Options
    • A. 0.75 F
    • B. 0.75 ?F
    • C. 0.03 F
    • D. 0.03 ?F
      • Discuss

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