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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 7
26.
The primary reason for the widespread use of Si in semiconductor device technology is
abundance of Si on the surface of earth
larger band gap of Si in comparison to Ge
favourable properties of Silicon-dioxide (SiO2)
lower melting point
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
If the conductivity of pure germanium is 1.54 siemens/metre, its resistivity in ohm-metre will be nearly
65
6.5
0.65
0.065
Answer: Option
Explanation:
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28.
Reluctivity is analogous to
permeability
conductivity
resistivity
retentivity
Answer: Option
Explanation:
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29.
The v-i characteristics of a diode may be linear or non linear.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
If a coil has diameter 'd' number of turns 'N' and form factor F then the inductance of the coil is proportional to
N2dF
Nd2F
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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