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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 12
41.
AE 139 is a
tunnel diode
germanium power transistor
photoconductive cell
silicon diode
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
The function off an oxide layer in an IC device is to
  1. mask against diffusion or ion implantation
  2. insulate the surface electrically
  3. increase the melting point of Si
  4. produce a chemically stable protective layer
1, 2, 3
1, 3, 4
2, 3, 4
4, 1, 2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
The passage of current in an electrolyte is due to the movement of
electrons
molecules
atoms
ions
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
In a CE bipolar transistor operating in active region, collector current is independent of
VCE
IB
both VCE and IB
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
When a normal atom loses an electron
the atom loses one-proton simultaneously
rest of the electrons move faster
the atom becomes a positive ion
the atom becomes a negative ion
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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