The block diagrams of two types of half wave rectifiers are shown in the figure.The transfer characteristics of the rectifiers are also shown within the block It is desired to make full wave rectifer using above two half-wave rectifiers.The resultant circuit will be  

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

A 3 line to 8 line decoder,with active low outputs,is used to implement a 3- variable Boolean function as shown in the figure. The simplified form of Boolean function F (A, B, C) implemented in 'Product of Sum' form will be

1.  (X + Z).( + + ).(Y + Z)

2.  ( + ).(X + Y + Z).( + )

3.  ( + + Z).( + Y + Z).(X + + Z).(X + Y + )

4.  ( + + ).( + Y + ).(X + Y + Z).(X + + )  

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4
Correct Answer :

( + + ).( + Y + ).(X + Y + Z).(X + + )

 


Explanation :
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The truth table of a monoshot shown in the figure is given in the table below Two monoshots,one positive edge triggered and other negative edge triggered,are connected as shown in the figure.The pulse widths of the two monoshot outputs,Q1 and Q2 are TON1 and TON2 respectively The frequency and the duty cycle of the signal at Q1 will respectively be

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
No Explanation available for this question

In Fig.Q1,the value of R is

1.  2.5Ω

2.  5.0Ω

3.  7.5Ω

4.  10.0Ω

View Answer  
4
Correct Answer :

7.5Ω


Explanation :
No Explanation available for this question

The RMS value of the voltage u(t)=3+4cos(3t) is:

1.  

2.  5V

3.  7V

4.  (3 + 2√2) V

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4
Correct Answer :


Explanation :
No Explanation available for this question

For the two-port network shown in Fig.below,the Z-matrix is given by

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
No Explanation available for this question

In Fig.below,the initial capacitor voltage is zero.The switch is dosed at t = 0.The final steady-state voltage across the capacitor is:

1.  20V

2.  10V

3.  5V

4.  0V

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4
Correct Answer :

10V


Explanation :
No Explanation available for this question

If is the electric field intensity,is equal to  

1.  

2.  

3.  null vector

4.  zero

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4
Correct Answer :

zero


Explanation :
No Explanation available for this question

A system with zero initial conditions has the closed loop transfer function.The system output is zero at the frequency

1.  0.5 rad/sec

2.  1 rad/sec

3.  2 rad/sec

4.  4 rad/sec

View Answer  
4
Correct Answer :

2 rad/sec


Explanation :
No Explanation available for this question

Fig.below shows the root locus plot (location of poles not given) of a third order system whose open loop transfer function is

1.  K/S3

2.  K/S2(S+1)

3.  K/S(S2+1)

4.  K/S(S2-1)

View Answer  
4
Correct Answer :

K/S3


Explanation :
No Explanation available for this question
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