Exercise: Materials And Components

Questions for: Materials And Components

If Bmax is the maximum flux density, hysteresis loss is proportional to
A:
Bmax
B:
B1.6max
C:
B2max
D:
B3max
Answer: B
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A characteristic property of crystal is its periodicity of structure.
A:
True
B:
False
C:
D:
Answer: A
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At room temperature the number of conducting electrons in an intrinsic semiconductor
A:
is almost equal to the number of valence electrons
B:
is about half the number of valence electrons
C:
is small as compared to the number of valence electrons
D:
is a very small fraction of the number of valence electrons
Answer: D
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As per temperature limits, the number of categories of solid dielectrics are
A:
7
B:
6
C:
8
D:
5
Answer: A
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In van der walls crystals, there exists a high degree of stability of the outer electron shell.
A:
True
B:
False
C:
D:
Answer: A

This is the reason for chemical inactivity in these crystals.

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