☰ Electrical Engineering Material (Electrical Engineering) - MCQs

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Q67.

a superconductor may be used for generating

  • A. voltage
  • B. pressure
  • C. temperature
  • D. magnetic field

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Q68.

a superconducting material is

  • A. copper
  • B. silver
  • C. mercury
  • D. gold

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Q69.

the energy gap of a superconductor

  • A. is dependent of temperature
  • B. increase with temperature
  • C. is maximum at critical temperature
  • D. is minimum at critical temperature

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Q70.

superconducting material in superconducting state has relative permeability of

  • A. more than one
  • B. one
  • C. zero
  • D. negative

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Q71.

which defect is inverse of peltier effect

  • A. seebeck effect
  • B. thomson effect
  • C. hall effect
  • D. joule effect

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Q72.

thermocouple is based on

  • A. Seebeck effect
  • B. Thomson
  • C. Joules
  • D. none of these

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