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Engineering Materials in EE

Engineering Materials in EE
Choose the best suitable of Diamagnetic : Paramagnetic::

 Nickel : Cobalt.
 Iron : Steel.
 Permalloy : Super-alloy.
 Water : Air.

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Engineering Materials in EE
The core of a transformer for microwave frequency should be made of

  ferrites.
 iron.
  silicon carbide.
  silicon.

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Engineering Materials in EE
Magnetic recording tape is most commonly made from

 iron-dust.
 ferric-oxide.
 small particles of iron.
 silicon-iron.

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Engineering Materials in EE
Materials which lack permanent magnetic dipoles are called

 ferro-magnectic.
None of these
 dia-magnetic.
 semi-magnetic.

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Engineering Materials in EE
The atomic radius in case of face centered cubic lattice is

 a / 4.
 a / 2.
 a / 3.
 a.

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Engineering Materials in EE
Almost the entire mass of an atom is concentrated in the

 nucleus.
 electrons.
 protons.
 neutrons.

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MORE MCQ ON Engineering Materials in EE

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