Exercise: Exam Question Papers

Questions for: Exam Question Papers

Consider the differential amplifier shown in figure. (Assume Ī² is very high).

Zin (base) =
A:
1 MĪ©
B:
100 kĪ©
C:
15 kĪ©
D:
ā‰ˆ 0
Answer: C
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Which of the following introduces mode partition noise?
A:
Coaxial line
B:
Waveguide
C:
Fibre transmission line
D:
Both coaxial line and waveguide
Answer: B
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Which of the following are the non-linear application of op-amp?
  1. Current-to-voltage converter
  2. Comparator
  3. Peak detector
  4. Limiter
Select the correct answer from the codes given below:
A:
1, 2 and 3
B:
2, 3 and 4
C:
1, 3 and 4
D:
1, 2 and 4
Answer: B
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The process of extension of a single-crystal surface by growing a film in such a way that the added atoms form a continuation of the single-crystal structure is called
A:
Ion implantation
B:
Chemical vapour deposition
C:
Electroplating
D:
Epitaxy
Answer: D
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A divide by 78 counters can be realized by using
A:
six mod-13 counters
B:
thirteen mod-6 counters
C:
one mod 13 counter followed by one mod-6 counter
D:
thirteen mod-13 counters
Answer: A
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