20 AUGUST 2021 CURRENT AFFAIRS QUIZ

 paramagnetic.

 diamagnetic.

 bipolar.

 ferromagnetic.

 Share holes

None of these

 Share electrons

 Lack holes

 1s2 , 2s2 2p6, 3s2 3p6 3d9, 4s2.

 1s2 , 2s2 2p6, 3s2 3p6 3d8, 4s1 4p

 none of above.

 1s2 , 2s2 2p6, 3s2 3p6 3d10, 4s1.

 Oxygen.

 Nitrogen.

 Sulphur.

 Carbon.

All of these

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

 explained the color lines in the hydrogen spectrum.

 had some made-up rules without explanations.

 area of hysteresis loop for the material.

 frequency of applied voltage.

 intensity of electric field.

 presence of magnetic materials in the vicinity.

 Pure iron, silicon iron, aluminium, bismuth.

 Silver, copper, aluminium, iron.

 Cobalt, nickel, aluminium, iron.

  Permalloy, nickel, air, water.

 curie temperature.

 conversion temperature.

 critical temperature.

 inversion temperature.

 12.

 4.

 2.

 7.

 motors.

 generators.

 all of above.

 loud speakers.