Electronics and Communication Engineering - Exam Questions Papers

46. 

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

VC =

A. 5 V
B. 10 V
C. 15 V
D. 30 V

Answer: Option B

Explanation:

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47. 

Find Leq if each L is 1 H

A. 4/3 H
B. 1/3 H
C. 2/3 H
D. 3/2 D

Answer: Option C

Explanation:

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48. 

The output of a Mealy system is 1 if there has been a pattern of 11000, otherwise 0. The minimum state for this system is :

A. 4
B. 5
C. 6
D. 7

Answer: Option B

Explanation:

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49. 

The property not valid for basic singularity function is

A. it is even signal
B. convolution of any arbitrary function x{t) and an impulse is the original function itself.
C. the sum of two impulses at same location is the impulse with the strength equal to the summation of individual strengths.
D. none of these.

Answer: Option D

Explanation:

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