Electronics and Communication Engineering - Electronic Devices and Circuits

6.
The energy of one quantum of light equal to hf.
True
False
Answer: Option
Explanation:
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7.
For most metals, Fermi level EF is less than
0.1 eV
2 eV
5 eV
10 eV
Answer: Option
Explanation:
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8.
The spins in a ferrimagnetic material are
all aligned parallel
partially aligned antiparallel without exactly cancelling out sublattice magnetisation
randomly oriented
all aligned antiparallel such that the sublattice cancels out exactly
Answer: Option
Explanation:
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9.
The permeability of soft iron can be increased by
purifying it
reducing carbon percentage
alloying with cobalt
increasing percentage
Answer: Option
Explanation:
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10.
All of the following elements have three valence electrons EXCEPT
boron
indium
gallium
arsenic
Answer: Option
Explanation:
No answer description is available. Let's discuss.