The eigen values of the following matrix are 

1.  3, 3 + 5j, 6 – j

2.  -6 + 5j, 3 + j, 3 - j

3.  3 + j, 3 - j, 5 + j

4.  3, -1 + 3j, -1 - 3j

View Answer  
4
Correct Answer :

3, -1 + 3j, -1 - 3j


Explanation :
No Explanation available for this question

An AC source of RMS voltage 20V with internal impedance ZS = (1 + 2j) feeds a load of impedance ZL = (7 + 4j)? in the figure below. The reactive power consumed by the load is

1.  8VAR

2.  16VAR

3.  28VAR

4.  32VAR

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4
Correct Answer :

8VAR


Explanation :
No Explanation available for this question

A signal flow graph of a system is given below. The set of equations that correspond to this signal flow graph is

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
No Explanation available for this question

The switch in the circuit shown was on position a for a long time, and is moved to position b at time t = 0. The current i(t) for t > 0 is given by

1.  0.2e-125t u(t) mA

2.  20e-1250t u (t) mA

3.  0.2e-1250t u (t) mA

4.  20e-1000t u (t) mA

View Answer  
4
Correct Answer :

20e-1250t u (t) mA


Explanation :
No Explanation available for this question

1.  0

2.  1

3.  2

4.  3

View Answer  
4
Correct Answer :

2


Explanation :
No Explanation available for this question

The magnitude of frequence y response of an underdamped second order system is 5 at 0 rad/sec and peaks to (10/√3) at 5√2 rad/sec. The transfer function of the system is

1.  500/(s2 + 10s + 100)

2.  375/(s2 + 5s + 75)

3.  720/(s2 + 12s + 144)

4.  1125/(s2 + 25s + 225)

View Answer  
4
Correct Answer :

500/(s2 + 10s + 100)


Explanation :
No Explanation available for this question

In the circuit shown, what value of RL maximizes the power delivered to RL

1.  2.4 Ω

2.  (8/3) Ω

3.  4 Ω

4.  6 Ω

View Answer  
4
Correct Answer :

4 Ω


Explanation :
No Explanation available for this question

The time domain behavior of an RL circuit is represented by L(di/dt) + Ri = V0(1 + Be-Rt/L sin t) u (t). For an initial current of i (0) = (V0/R) , the steady state value of the current is given by

1.  i(t) → (V0/R)

2.  i(t) → (2V0/R)

3.  i(t) → (V0/R)(1 + B)

4.  i(t) → (2V0/R)(1 + B)

View Answer  
4
Correct Answer :

i(t) → (V0/R)


Explanation :
No Explanation available for this question

In the circuit below, the diode is ideal. The voltage V is given by

1.  min (Vi, 1)

2.  max (Vi, 1)

3.  min (-Vi, 1)

4.  max (-Vi, 1)

View Answer  
4
Correct Answer :

max (-Vi, 1)


Explanation :
No Explanation available for this question

Group  I  gives  two  possible  choices  for  the  impedance  Z  in  the  diagram.  The  circuit elements in Z satisfy the condition R2C2 > R1C1. The transfer function (Vo/Vi) represents akind of controller. Match the impedances in Group I with the types of controllers in Group II.

1.  Q-1, R-2

2.  Q-1, R-3

3.  Q-2, R-3

4.  Q-3, R-2

View Answer  
4
Correct Answer :

Q-1, R-3


Explanation :
No Explanation available for this question
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