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Electronics and Communication Engineering - Exam Questions Papers

Exercise : Exam Questions Papers - Exam Paper 15
46.
A compensated wattmeter has its reading corrected for error due to which one of the following parameters?
Frequency
Friction
Power consumed in current coil
Power consumed in pressure coil
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Personal computer cannot be used for which one of the following?
Game playing
Weather forecasting
Office Automation
Home computing
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
Which of the following output configurations are available in a TTL gate?
  1. Open collector output
  2. Totem pole output
  3. Tristate output
Select the correct answer from the codes given below:
1 only
1 and 2 only
2 and 3 only
1, 2 and 3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Which of the following be true for a CE transistor amplifier if the emitter resistor value is made equal to zero?
  1. Its gain will increase
  2. Its stability will increase
  3. Its gain will decrease
  4. Its stability will decrease
Select the correct answer from the codes given below
1 and 2
2 and 3
3 and 4
1 and 4
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
The feedback control system shown in figure is stable.
for all K ≥ 0
only if K ≥ 1
only if 0 ≤ K < 1
only if -1 ≤ K < 1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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