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MCQs

Total Questions : 575 | Page 58 of 58 pages
Question 571. . ___ is the ability of a material to remain magnetized after removal of the magnetizing force.
  1.    Reluctance
  2.    Hysteresis
  3.    Retentivity
  4.    Induction
 Discuss Question
Answer: Option C. -> Retentivity
Question 572. . A group of force lines going from the north pole to the south pole of a magnet is called the magnetic ___.
  1.    retentivity
  2.    reluctance
  3.    hysteresis
  4.    flux
 Discuss Question
Answer: Option D. -> flux
Question 573. . When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage will _____.
  1.    not be affected
  2.    equal 0 V
  3.    decrease
  4.    increase
 Discuss Question
Answer: Option D. -> increase
Question 574. . The ___ is an electromagnetic device that contains a coil rotating on a jeweled bearing mount.
  1.    permanent-magnet speaker
  2.    d'Arsonval movement
  3.    single-pole, double-throw relay
  4.    crankshaft position sensor
 Discuss Question
Answer: Option B. -> d'Arsonval movement
Question 575. . 
Ferromagnetic materials have minute magnetic ___ created within their atomic structure by the orbital motion and spin of electrons.
  1.    forces
  2.    flux lines
  3.    domains
  4.    tapes
 Discuss Question
Answer: Option C. -> domains

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