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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 15
1.
The product kT (where k is Boltzmann's constant and T is absolute temperature) at room temperature is about
0.051 eV
0.026 eV
0.01 eV
0.001 eV
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
If E is energy level of electron and EF is fermi level, and T = 0 and E > EF, then
the probability of finding an occupied quantum state of energy higher than EF is zero
all quantum states with energies greater than EF are occupied
some quantum states with energies greater than EF are occupied
majority of quantum states with energies greater than EF are occupied
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
Which variety of copper has the best conductivity?
Pure annealed copper
Hard drawn copper
Induction hardened copper
Copper containing traces of silicon
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
The number of valence electrons in a silicon atom is
4
2
1
0
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
In a JFET VDS exceeds the rated value. Then it operates in
active region
ohmic region
cut off region
either cut off or active region
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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