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Electronics and Communication Engineering - Exam Questions Papers

Exercise : Exam Questions Papers - Exam Paper 13
36.
Consider the voltage transfer characteristic of a standard CMOS inverter

where region A corresponds to
NMOS and PMOS triode
Both are saturation
NMOS saturated PMOS linear
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.

Assertion (A): Ideal current sources and ideal voltage sources do not exist in reality.

Reason (R): All sources have finite internal impedances.

Both A and R are individually true and R is the correct explanation of A
Both A and R are individually true but R is not the correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
A signal occupies a band 5 kHz to 10 kHz. For proper error free reconstruction at what rate it should be sampled?
10 kHz
20 kHz
5 kHz
(10 + 5) x 2 kHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
Which of the following circuits come under the class of combinational logic circuits?
  1. Full adder
  2. Full subtractor
  3. Half adder
  4. J-K flip-flop
  5. Counter
Select the correct answer from the codes given below:
1 only
3 and 4
4 and 5
1, 2 and 3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
Consider a 565 PLL with RT = 10 kΩ and CT = 0.01 μF. What is the output frequency of the VCO?
10 kHz
5 kHz
2.5 kHz
1.25 kHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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