ENGINEERING MATERIALS IN EE QUIZ

 They have large magnetic susceptibility.

  They have fixed value of μr.

 They lose their nonlinearly property above the Curie temperature.

 Energy loss is proportional to the area of hysteresis loop.

 protons.

 electrons.

 electrons and protons.

 protons and neutrons.

 increasing carbon percentage.

 reducing carbon percentage.

 purifying it.

 alloying with cobalt.

 2, 8, 6.

 none of these.

 2, 8, 2.

 1s2 , 2s2 2p6, 3s2 3p6.

 iron-dust.

 ferric-oxide.

 silicon-iron.

 small particles of iron.

 100.

  0.

  infinity.

  1.

 one of the constituent is iron.

 the constituent is only iron.

 the atomic magnetic moments are parallel.

 the atomic magnetic moments are antiparallel and unequal.

 had some made-up rules without explanations.

 explained the color lines in the hydrogen spectrum.

All of these

 could not explain the line spectrum of atoms larger than hydrogen.

 ferroelectric materials.

 super die-electrics.

 elastomers.

 hard die-electrics.

 magneto-calorisation.

 magnetostriction.

 magnetic expansion.

 magnetic hysteresis.