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Engineering Materials in EE

Engineering Materials in EE
All ions of an element have the same

 number of protons.
 number of electrons.
 atomic number.
 both option A. and C.

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Engineering Materials in EE
A degaussing is the process of

 removing gases from materials.
 remagnetising metallic parts.
 removal of magnetic impurities.
 demagnetising metallic parts.

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Engineering Materials in EE
Two different isotopes of an element have different

 numbers of neutrons.
 numbers of protons.
 numbers of electrons.
 atomic number.

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Engineering Materials in EE
The electron configuration of copper is

 none of above.
 1s2 , 2s2 2p6, 3s2 3p6 3d9, 4s2.
 1s2 , 2s2 2p6, 3s2 3p6 3d10, 4s1.
 1s2 , 2s2 2p6, 3s2 3p6 3d8, 4s1 4p

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Engineering Materials in EE
Dielectric constant for vacuum is

 100.
  0.
  infinity.
  1.

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

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

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