The ratio of the average energy of Constellation 1 to the average energy of Constellation is

1.  4a2

2.  4

3.  2

4.  8

View Answer  
4
Correct Answer :

4


Explanation :
No Explanation available for this question

Match the following and choose the correct combination:   Group 1   Group 2 E Newton-Raphson metod 1 Solving nonlinear equations F Runge-Kutta Method 2 Solving linear simultaneous equation G Simpson's Rule 3 Solving ordinary differential Equations H Gauss Elimination 4 Numerical integrtion  Method     5 interpolation     6 Caluculation of Eigen Values  

1.  E-6, F-1, G-5, H-3

2.  E-1, F-6, G-4, H-3

3.  E-1, F-3, G-4, H-2

4.  E-5, F-3, G-4, H-1

View Answer  
4
Correct Answer :

E-1, F-3, G-4, H-2


Explanation :
No Explanation available for this question

If  these constellations are used  for digital communications over an AWGN  channel,  then which of the following statements is true

1.  Probability of symbol error

2.  Probability of symbol error for Constellation 1 is higher

3.  Probability of symbol error is equal for both the constellations

4.  The value of N0 will determine which of the two constellations has a lower probability of symbol error

View Answer  
4
Correct Answer :

Probability of symbol error for Constellation 1 is higher


Explanation :
No Explanation available for this question

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

The transfer function V0(s) Vt(s) is

1.  (1 - sRC)/(1 + sRC)

2.  (1 + sRC)/(1 - sRC)

3.  1/(1 - sRC)

4.  1/(1 + sRC)

View Answer  
4
Correct Answer :

(1 - sRC)/(1 + sRC)


Explanation :
No Explanation available for this question

For the circuit show in the figure, the instantaneous current ii(t) is    

1.  ((10√3)/2)  90° Amps.

2.  ((10√3)/2)  -90° Amps

3.  5

4.  5

View Answer  
4
Correct Answer :

((10√3)/2)  90° Amps.


Explanation :
No Explanation available for this question

Impedance Z as shown in the given figure is

1.   j29Ω

2.  j9Ω

3.  j19Ω

4.  j39Ω

View Answer  
4
Correct Answer :

j9Ω


Explanation :
No Explanation available for this question

For  the  circuit  shown  in  the  figure,  Thevenin's  voltage  and  Thevenin's  equivalent resistance atterminals a - b is

1.  5 V and 2 Ω

2.  7.5 V and 2.5 Ω

3.  4 V and 2 Ω

4.  3 V and 2.5 Ω

View Answer  
4
Correct Answer :

7.5 V and 2.5 Ω


Explanation :
No Explanation available for this question

If R1  = R2  = R4  = R  and R3  =  1.1R  in  the  bridge  circuit  shown  in  the  figure,  then  the reading in the ideal voltmeter connected between a and b is

1.  0.238 V.

2.   0.138 V

3.  -0.238 V.

4.  1 V

View Answer  
4
Correct Answer :

-0.238 V.


Explanation :
No Explanation available for this question

A p+ n junction has built-in potential of 0.8 V. The depletion layer width at a reverse bias of 1.2 V is 2 μm. For a reverse bias of 7.2 V, the depletion layer width will be

1.   4 μm

2.   4.9 μm

3.   8 μm

4.   12 μm

View Answer  
4
Correct Answer :

4.9 μm


Explanation :
No Explanation available for this question
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