Electronics and Communication Engineering - Materials and Components

6.
The dielectrics having only one kind of atoms are known as elemental dielectrics.
True
False
Answer: Option
Explanation:
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7.
For a core having a relative permeability μr, magnetic dipole moment per unit volume M and field strength H, the flux density B is
B = μr (H + M)
B = μ0 (H + M)
B = μ0μr (H + M)
B = μ0μr (H - M)
Answer: Option
Explanation:
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8.
The law that (where K is thermal conductivity, σ is electrical conductivity and T is absolute temperature) for all metals is equal to a universal constant is known as
Lorentz law
Wiedemann Franz law
Curie Weiss law
Kittel law
Answer: Option
Explanation:
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9.
In elemental dielectrics, the orientation and ionic polarization are absent.
True
False
Answer: Option
Explanation:
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10.
In which of the following semiconductor are holes majority carriers
intrinsic
extrinsic
p type
n type
Answer: Option
Explanation:
No answer description is available. Let's discuss.