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 |
| A. |
NMOS and PMOS triode | | B. |
Both are saturation | | C. |
NMOS saturated PMOS linear | | D. |
None of these |
Answer: Option C
Explanation:
|
| 37. |
Assertion (A): Ideal current sources and ideal voltage sources do not exist in reality. Reason (R): All sources have finite internal impedances. |
| A. |
Both A and R are individually true and R is the correct explanation of A | | B. |
Both A and R are individually true but R is not the correct explanation of A | | C. |
A is true but R is false | | D. |
A is false but R is true |
Answer: Option A
Explanation:
|
| 38. |
A signal occupies a band 5 kHz to 10 kHz. For proper error free reconstruction at what rate it should be sampled? |
| A. |
10 kHz | | B. |
20 kHz | | C. |
5 kHz | | D. |
(10 + 5) x 2 kHz |
Answer: Option A
Explanation:
|
| 39. |
Which of the following circuits come under the class of combinational logic circuits? - Full adder
- Full subtractor
- Half adder
- J-K flip-flop
- Counter
Select the correct answer from the codes given below: |
| A. |
1 only | | B. |
3 and 4 | | C. |
4 and 5 | | D. |
1, 2 and 3 |
Answer: Option D
Explanation:
|
| 40. |
Consider a 565 PLL with RT = 10 kΩ and CT = 0.01 μF. What is the output frequency of the VCO? |
Answer: Option A
Explanation:
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