Q.1

The inconsistency of Ampere's law can be removed by adding __________ to it.

  • displacement current density alone.
  • conduction current density alone.
  • displacement and conduction current densities.
  • none of these
Q.2

A 'n' bit sequence generator employing SR flip-flop has maximum length of the sequence as :

  • 2n
  • n
  • 2n - 1
  • 2n-1
Q.3

Let f(A, B) = A ⊕ B; then the simplified form of the function f(f(xy, z)w) is

  • (xyz)w
  • xyzw
  • (xyz) + w
  • none of these
Q.4

An image usesxpicture elements. Each of the picture elements can take any of the 8 distinguishable intensity levels. The maximum entropy in the above image will be

  • 2097152 bits
  • 786432 bits
  • 648 bits
  • 144 bits
Q.5

A λ/4 long high frequency transmission line is terminated into one impedance ZR. If Z0 be the characteristic impedance of the line, then input impedance Zin is

  • ZoZR
  • Z2R/Zo
  • Z20/ZR
  • Infinity
Q.6

The maximum percent overshoot with maximum value of first overshoot as 3.5 V and steady state value as 2.V is

  • 35.92%
  • 26.43%
  • 57.61%
  • 15.24%
Q.7

The Causal system given below is __________
H(z) = 6 + z-1 - z-2

  • maximum phase
  • minimum phase
  • mixed phase
  • none of these
Q.8

If the memory chip size isx 1 bits, then the number of chips required to make up 1 kB (bytes of memory is

  • 32
  • 24
  • 12
  • 8
Q.9

The inconsistency of Ampere's law can be removed by adding __________ to it.

  • displacement current density alone.
  • conduction current density alone.
  • displacement and conduction current densities.
  • none of these
Q.10

A system haspoles or 2 zeros. Its high frequency asymptote in its magnitude plot has slope of

  • -200 dB/decade
  • -240 dB/decade
  • -280 dB/decade
  • -320 dB/decade
Q.11

Find z parameters for the following network

Q.12

AMHz plane EM wave is propagating in free space. The wave is incident normally on an infinite copper slap. The antenuation constant for the wave is (σcopper = 5.8 x 107 mho/ m). The skin depth is

  • 0.005 x 10-3 m
  • 0.0038 x 10-3m
  • 0.0028 x 10-3 m
  • 0.0024 x 10-3 m
Q.13

An XOR gate with 8 variable is as follows:
A ⊕ B ⊕ C ⊕ D ⊕ E ⊕ F ⊕ G ⊕ H
The number of minterms in the Boolean expression is

  • 255
  • 127
  • 128
  • 256
Q.14

A coil has a designed for high Q performance at a rated voltage and a specified frequency. If the frequency of operation is doubled, and the coil is operated at the same rated voltage, then the Q factor and the active power P consumed by the coil will be affected as follows.

  • P is doubled, Q is halved
  • P is halved, Q is doubled
  • P remains constant, Q is doubled
  • P decreases 4 times, Q is doubled
Q.15

(1 2 1)x = (1 0 0)4 Then x is equal to

  • 2
  • 3
  • 5
  • does not exist
Q.16

The equivalent T circuit of this coupled network is shown in figure. Find the values of ZA, ZB and ZC.

  • -j, 6j, 2j
  • -j, 2j, 6j
  • j, 2j, - 6j
  • j, 2j, 6j
Q.17

A speech signal, band limited to 4kHz and peak voltage varying between +and -is sampled at the Nyquist rate. Each sample is quantized and represented by 8 bits. The number of quantization levels required to reduce the quantization noise by a factor of 4 would be

  • 1024
  • 512
  • 256
  • 64
Q.18

The number of variables in a function is odd and the number of minterms with even number of 0's are same as the number of minterms with odd number at 1 's, the expression formed can be represented in __________ as well as __________ form.

  • exclusive - OR, NOR
  • equivalence, exclusive - OR
  • AND, coincidence
  • OR, exclusive - OR
Q.19

The equivalent T circuit of this coupled network is shown in figure. Find the values of ZA, ZB and ZC.

  • -j, 6j, 2j
  • -j, 2j, 6j
  • j, 2j, - 6j
  • j, 2j, 6j
Q.20

For parallel RLC circuit, which one of the following statements is NOT correct?

  • The bandwidth of the circuit deceases if R is increased
  • The bandwidth of the circuit remains same if L is increased
  • At resonance, input impedance is a real quantity
  • At resonance, the magnitude of input impedance attains its minimum value
Q.21

The equivalent T circuit of this coupled network is shown in figure. Find the values of ZA, ZB and ZC.

  • -j, 6j, 2j
  • -j, 2j, 6j
  • j, 2j, - 6j
  • j, 2j, 6j
Q.22

A bipolar differential amplifier uses a transistor having β0 =ICQ =mA, |Adm| =and CMRR =dB. The value of Rc and RE will be respectively __________ .

  • 1.25 kΩ, 1.25 MΩ
  • 125 kΩ, 1.25 MΩ
  • 1.25 MΩ, 1.25 kΩ
  • 3.25 kΩ, 3.25 MΩ
Q.23

For a given magnetic material operating in linear mode B = 0.T. Assume permeability =then magnetization is:

  • 44836 A/m
  • 46834 A/m
  • 946 A/m
  • 936 A/m
Q.24

If (225)Y = (165)8 find value of Y

  • 7
  • 8
  • 9
  • 11
Q.25

A 'n' bit sequence generator employing SR flip-flop has maximum length of the sequence as :

  • 2n
  • n
  • 2n - 1
  • 2n-1
Q.26

A speech signal, band limited to 4kHz and peak voltage varying between +and -is sampled at the Nyquist rate. Each sample is quantized and represented by 8 bits. The number of quantization levels required to reduce the quantization noise by a factor of 4 would be

  • 1024
  • 512
  • 256
  • 64
Q.27

The equivalent T circuit of this coupled network is shown in figure. Find the values of ZA, ZB and ZC.

  • -j, 6j, 2j
  • -j, 2j, 6j
  • j, 2j, - 6j
  • j, 2j, 6j
Q.28

If (225)Y = (165)8 find value of Y

  • 7
  • 8
  • 9
  • 11
Q.29

A uniform plane wave is described by the equation H = A/m. If the velocity of the wave is 2 x 108 m/s and εr = 1.then. The electric field intensity is

  • 90.35e-j0.1px v/m
  • 903.5e-j0.1px v/m
  • 903.5e-j0.1pz v/m
  • 90.35e-j0.1pz v/m
Q.30

A 'n' bit sequence generator employing SR flip-flop has maximum length of the sequence as :

  • 2n
  • n
  • 2n - 1
  • 2n-1
Q.31

A uniform plane wave is described by the equation H = A/m. If the velocity of the wave is 2 x 108 m/s and εr = 1.then. The electric field intensity is

  • 90.35e-j0.1px v/m
  • 903.5e-j0.1px v/m
  • 903.5e-j0.1pz v/m
  • 90.35e-j0.1pz v/m
Q.32

For the network shown below, the Thevenin voltage and RTH is equal to __________

  • 0 V, 58.82 Ω
  • 0 V, 96.774 Ω
  • 0 V, 3 KΩ
  • None of these
Q.33

The dual transform of the given network as

  • none of the above
Q.34

A uniform plane wave is described by the equation H = A/m. If the velocity of the wave is 2 x 108 m/s and εr = 1.then. The electric field intensity is

  • 90.35e-j0.1px v/m
  • 903.5e-j0.1px v/m
  • 903.5e-j0.1pz v/m
  • 90.35e-j0.1pz v/m
Q.35

Find z parameters for the following network

Q.36

The practical resonant circuit is shown in above figure. Find the expression for the resonant frequency ωo

  • None of these
Q.37

Find z parameters for the following network

Q.38

The dual transform of the given network as

  • none of the above
Q.39

Find z parameters for the following network

Q.40

The dual transform of the given network as

  • none of the above
Q.41

A bipolar differential amplifier uses a transistor having β0 =ICQ =mA, |Adm| =and CMRR =dB. The value of Rc and RE will be respectively __________ .

  • 1.25 kΩ, 1.25 MΩ
  • 125 kΩ, 1.25 MΩ
  • 1.25 MΩ, 1.25 kΩ
  • 3.25 kΩ, 3.25 MΩ
Q.42

A bipolar differential amplifier uses a transistor having β0 =ICQ =mA, |Adm| =and CMRR =dB. The value of Rc and RE will be respectively __________ .

  • 1.25 kΩ, 1.25 MΩ
  • 125 kΩ, 1.25 MΩ
  • 1.25 MΩ, 1.25 kΩ
  • 3.25 kΩ, 3.25 MΩ
Q.43

For a given magnetic material operating in linear mode B = 0.T. Assume permeability =then magnetization is:

  • 44836 A/m
  • 46834 A/m
  • 946 A/m
  • 936 A/m
Q.44

The Thevenin impedance Zth between the nodes P and Q in the following circuit is

  • 1
    5-02-21-2.png
    5-02-21-3.png
    5-02-21-4.png
Q.45

The Thevenin impedance Zth between the nodes P and Q in the following circuit is

  • 1
    5-02-21-2.png
    5-02-21-3.png
    5-02-21-4.png
Q.46

Find z parameters for the following network

Q.47

The practical resonant circuit is shown in above figure. Find the expression for the resonant frequency ωo

  • None of these
Q.48

The dual transform of the given network as

  • none of the above
Q.49

A bipolar differential amplifier uses a transistor having β0 =ICQ =mA, |Adm| =and CMRR =dB. The value of Rc and RE will be respectively __________ .

  • 1.25 kΩ, 1.25 MΩ
  • 125 kΩ, 1.25 MΩ
  • 1.25 MΩ, 1.25 kΩ
  • 3.25 kΩ, 3.25 MΩ
Q.50

For a given magnetic material operating in linear mode B = 0.T. Assume permeability =then magnetization is:

  • 44836 A/m
  • 46834 A/m
  • 946 A/m
  • 936 A/m
0 h : 0 m : 1 s