# 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.

4

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 + + )

4

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

Explanation :
No Explanation available for this question

# 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.

4

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

4

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

4

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.

4

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

4

10V

Explanation :
No Explanation available for this question

# If is the electric field intensity,is equal to

1.

2.

3.  null vector

4.  zero

4

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

4

Explanation :
No Explanation available for this question

1.  K/S3

2.  K/S2(S+1)

3.  K/S(S2+1)

4.  K/S(S2-1)

4