# A communication channel with additive white Gaussian noise, has a bandwidth of 4 kHz and SNR of 15. Its channel capacity is

1.  1.6 kbps

2.  16 kbps

3.  32 kbps

4.  256 kbps

4

16 kbps

Explanation :
No Explanation available for this question

# A combinational circuit in one is which the output depends on the

1.  input combination at that time

2.  input combination and the previous combination

3.  input combination at that time and the previous combination

4.  present output and the previous output

4

present output and the previous output

Explanation :
No Explanation available for this question

# are three transfer functions whose phase variations are shown in the given figure. The magnitude variation with respect to frequency is the same for both G (j  amd (J ,  but their phase variation is as indicated by the curves labeled A and C in the given figure. The transfer function (J , is such that GA, GB and GC are respectively

1.  Minimum phase, all pass and non-minimum phase functions

2.  Minimum phase, non-minimum phase and all pass functions

3.  All pass minimum phase and non-minimum phase functions

4.  All pass non-minimum phase and minimum phase functions

4

Minimum phase, all pass and non-minimum phase functions

Explanation :
No Explanation available for this question

# The Q-output of J-K FLIP-FLOP is ‘1’. The output does not change when a clock-pulse is applied. The inputs J and K will be respectively (where ‘x’-don’t care state)

1.  0 and x

2.  x and 0

3.  1 and 0

4.  0 and 1

4

0 and x

Explanation :
No Explanation available for this question

# For the field-controlled dc servomotor shown in the figure, the transfer function / E(s)

1.   Two time constants, no integration

2.   Tow time constants one integration

3.   One time constants one integration

4.   One time constant, two integration

4

Tow time constants one integration

Explanation :
No Explanation available for this question

# A divide by 78 counters can be realized by using

1.  6 nos of mod-13 counters

2.  13 nos of mod-6 counters

3.  one mod-13 counter followed by one mod-6 counter

4.  13 nos and mod-13 counters

4

13 nos of mod-6 counters

Explanation :
No Explanation available for this question

# Match List-I with List-II and select the correct answer using the code given below the lists: List-I List-II A.Frequencymodulation 1. Envelope detection B. Double sideband suppressed signal carrier 2.Companding C. PCM 3. Balanced modular D.Amplitudemodulation 4. Pre-emphasis and de-emphasis

1.   A B C D 1 2 3 4

2.   A B C D 1 2 4 3

3.   A B C D 4 3 1 2

4.   A B C D 4 3 2 1

4
 A B C D 4 3 2 1

Explanation :
No Explanation available for this question

# In a sequential circuit, other outputs at any instant of time depends

1.  only on the inputs present at that time instant of time

2.  on past outputs as well as present inputs

3.  only on the past inputs

4.  only on the past outputs

4

only on the past inputs

Explanation :
No Explanation available for this question

# The Nyquist sampling rate for the signal g(t) = 10 cos (50 πt) cos2(150 πt) where ‘t’ is is in seconds, is

1.  150 samples per second

2.  200 samples per second

3.  300 samples per second

4.  350 samples per second

4

350 samples per second

Explanation :
No Explanation available for this question

1.   8 kbps

2.  64 kbps

3.  256 kbps

4.  5126 kbps

4