The boolean function A + BC is a reduced form of

1.  AB + BC

2.  (A + B).(A + C)

3.  

4.  (A + C).B

View Answer  
4
Correct Answer :

(A + B).(A + C)


Explanation :
No Explanation available for this question

A DC voltage source is connected across a series R-L-C.Under steady-state reaches, the ratio of the energy stored in the capacitor to the total energy supplied by the voltage source, is equal to

1.  R only

2.  L only

3.  C only

4.  R and L combination

View Answer  
4
Correct Answer :

C only


Explanation :
No Explanation available for this question

Consider a DC voltage coils are connected to a series R-C circuit. When the steady-state reaches, the ratio of the energy stored in the capacitor to the total energy supplied by the voltage source, is equal to

1.  0.362

2.  0.500

3.  0.632

4.  1,000

View Answer  
4
Correct Answer :

0.500


Explanation :
No Explanation available for this question

Two 2 H inductance coils are connected in series and are also magnetically coupled to each other the coefficient of coupling being 0.1.The total inductance of the combination can be

1.  0.4H

2.  3.2H

3.  4.0H

4.  3.3H

View Answer  
4
Correct Answer :

3.3H


Explanation :
No Explanation available for this question

The RMS value of a rectangular wave of period T,having a value of +V for a diuration,T1(< T) and –V  for the duration ,T-T1=T2 ,equals to

1.  V

2.  (T1-T2)V/T

3.  V/√2

4.  T1V/T2

View Answer  
4
Correct Answer :

V


Explanation :
No Explanation available for this question

If L[f(t)]=2(s+1)/(s2+2s+5) then f(0+) and f(∞) are given by

1.  0,2 respectively

2.  2,0 respectively

3.  0,1respectively

4.  2/5,0 respectively

View Answer  
4
Correct Answer :

2,0 respectively


Explanation :
No Explanation available for this question

The current ,i(t),through a 10Ω resistor in series with an inductance ,is given by i(t)=3+4sin (100t+450)+4sin(300t+600)ampere The RMS value of the current and the power dissipated in the circuit are:

1.  √41 A,410W,respectively

2.  √35 A,350W,respectively

3.   5A,250W,respectively

4.  11A,1210W,respectively

View Answer  
4
Correct Answer :

 5A,250W,respectively


Explanation :
No Explanation available for this question

Signal flow graph is used to find

1.  stability of the system

2.  controllability of the system

3.   transfer function of the system

4.  poles of the system

View Answer  
4
Correct Answer :

transfer function of the system


Explanation :
No Explanation available for this question

The step error coefficient of a system G(s)=1/(s+6))s+1) with unity feedback is

1.  1/6

2.  ∞

3.  0

4.  1

View Answer  
4
Correct Answer :

1/6


Explanation :
No Explanation available for this question

The final value theorem is used to find the

1.  steady state value of the system output

2.  initial value of the system of the system output

3.  transient behavior of the system output

4.  none of these

View Answer  
4
Correct Answer :

steady state value of the system output


Explanation :
No Explanation available for this question
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