☰ Electrical Engineering Material (Electrical Engineering) - MCQs

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Q61.

For a given dielectric, with increase in temperature the ionic polarizability

  • A. increases
  • B. decrease
  • C. remains same
  • D. fluctuates

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Q62.

dielectric strength of a medium

  • A. increase with increase in temperature
  • B. decrease with increase in thickness
  • C. increase with moisture content
  • D. is not affected by the moisture content

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Q63.

dielectric strength of a medium

  • A. increase with increase in temperature
  • B. decrease with increase in thickness
  • C. increase with moisture content
  • D. is not affected by the moisture content

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Q64.

dielectric strength of a material depend on

  • A. temperature
  • B. thickness
  • C. moisture content
  • D. all of these

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Q65.

what type of magnetic behaviour is observed in type I superconductor

  • A. perfect diamagnetism
  • B. perfect paramagnetism
  • C. perfect ferromagnetism
  • D. perfect ferrimagnetism

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Q66.

superconductivity in a material can be destroyed by

  • A. increasing the temperature above a certain limit
  • B. applying a magnetic field above a certain limit
  • C. passing a current above certain limit
  • D. all of the above

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