IndiaBIX

Electronics and Communication Engineering - Exam Questions Papers

Exercise : Exam Questions Papers - Exam Paper 16
21.

Assertion (A): The small signal analysis of a transistor amplifier is done to obtain the current gain, voltage gain and the conversion efficiency of an amplifier.

Reason (R): The small signal analysis of a transistor amplifier uses the small signal parameters of the transistor.

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.
22.
Following information is given:
  1. x(z) has two poles at z = and z = - 1
  2. x(1) = 1, x(- 1) = 1
  3. ROC includes
Then x(n) is:
u(n) + (-1)n u(- n - 1)
2 u(n) + (-1)n u(- n - 1)
2 u(n - 1) + (-1)n - 1 u(- n)
None
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Average power for δ(t)dt signal is __________ .
1
0
∞
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
The feedback configuration and the pole-zero locations of G(s) are shown below. The root locus for negative values k, i.e., for -∞ < k < 0, has breakaway/break in points and angle of departure at pole P (with respect to the positive real axis) equal to
± 2 and 0°
± 2 and 45°
± 3 and 0°
± 3 and 45°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Consider the following, logic diagram :

The count sequence of the above logic diagram is :
0000 to 1111
0000 to 1001
0000 to 1010
1001 to 0000
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers