# The signal flow graph for a system is given below. The transfer function  y(s)/g(s) for this system is

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# In the circuit shown below the op-amps are ideal. Then Vout in Volts is

1.  4

2.  6

3.  8

4.  10

4

8

Explanation :
No Explanation available for this question

# In the circuit shown below, Q1has negligible collector-to-emitter saturation voltage and the diode drops negligible voltage across it under forward bias. If Vcc is +5 V, X and Y are digital signals with 0 V as logic 0 and Vcc as logic 1, then the Boolean expression for Z is

1.  X Y

2.

3.

4.

4

Explanation :
No Explanation available for this question

# A voltage 1000 sinωt Volts is applied across YZ. Assuming ideal diodes,the voltage measured across WX in Volts, is

1.  Sin ωt

2.  (sinωt+sinωt?)/2

3.  (sinωt-?sinωt?)/2

4.  0 for all t

4

0 for all t

Explanation :
No Explanation available for this question

# Three capacitors C1, C2 and C3 whose values are 10μF, 5μF, and 2μF respectively, have breakdown voltages of 10V, 5V, and 2V respectively. For the interconnection shown below, the maximum safe voltage in Volts that can be applied across the combination, and the corresponding total charge in μC stored in the effective capacitance across the terminals are respectively,

1.  2.8 and 36

2.  7 and 119

3.   2.8 and 32

4.  7 and 80

4

2.8 and 32

Explanation :
No Explanation available for this question

# There are four chips each of 1024 bytes connected to a 16 bit address bus as shown in the figure below. RAMs 1, 2, 3 and 4 respectively are mapped to addresses

1.  0C00H-0FFFH, 1C00H-1FFFH, 2C00H-2FFFH, 3C00H-3FFFH

2.  1800H-1FFFH, 2800H-2FFFH, 3800H-3FFFH, 4800H-4FFFH

3.  0500H-08FFH, 1500H-18FFH, 3500H-38FFH, 5500H-58FFH

4.  0800H-0BFFH, 1800H-1BFFH, 2800H-2BFFH, 3800H-3BFFH

4

0800H-0BFFH, 1800H-1BFFH, 2800H-2BFFH, 3800H-3BFFH

Explanation :
No Explanation available for this question

# In the circuit shown below, the silicon npn transistor Q has a very high value of β.The required value of R2 in k  to produce IC= 1 mA is

1.  20

2.  30

3.  40

4.  50

4

40

Explanation :
No Explanation available for this question

# Let Uand Vbe two independent and identically distributed random variables such that  P (U=+1)=p(u=-1)=½ The entropy H(U +V) in bits is

1.  3/4

2.  1

3.  3/2

4.  log23

4

3/2

Explanation :
No Explanation available for this question

# The current in the 1 resistor in Amps is

1.  2

2.  3.33

3.  10

4.  12

4

10

Explanation :
No Explanation available for this question

# Choose the grammatically CORRECTsentence:

1.  Two and two add four.

2.  Two and two become four.

3.  Two and two are four.

4.  Two and two make four

4