Q.1.

The following Variable Entered Map (VEM) represents which of the following function:

Q.2.

Consider the circuit shown below of 2 : 1 MUX is given by the function g = ac + bc

Then f is :

Q.3.

A periodic voltage has following values for equal time intervals changing suddenly from one value to next :--etc.
What would be the RMS value of a sine wave having the same peak value as that of the above mentioned periodic wave?

Q.4.

In a infinite ladder circuit as shown above each resistance of r Ω then find RAB

Q.5.

The electric field of uniform plane wave is given by E =sin (2 p x 108t- pz) x +cos (2 p x 108t - pz) y. Find phase velocity

Q.6.

The minimal function that can detect a "divisible byBCD code digit (representation D8D4D2D1) is given by

Q.7.

In a infinite ladder circuit as shown above each resistance of r Ω then find RAB

Q.8.

To realize following function 'f',

How many minimum number of 2 input NAND gates are required?

Q.9.

A control system is as shown in given figure The maximum value of gain K for which the system is stable is

Q.10.

In the circuit s closed for a long time and steady state is reached. s is opened at t = 0+ Determine current through resistor.

Q.11.

The probability density function of a random variable x is as shown.

The mean of the distribution is:

Q.12.

A generator ofΩ internal impedance and operating at 1 GHz feeds aΩ load via a coaxial line of characteristic impedanceΩ. The VSWR on the feed line is

Q.13.

A lossless transmission line iscm long and operates at a frequency ofMHz. Inductance and capacitances present in a line are 0.5 μH/m andpF/m. Phase constant and phase velocity are respectively.

Q.14.

Two D flip-flop as shown below are to be connected as a synchronous counter that goes through the following Q1Q0 sequence
→→→→→ __________
The inputs D0 and D1 respectively should be connected as

Q.15.

Consider the sequence x(n) whose fourier transform X(e) is depicted for - p ≤ ω ≤ p as shown in figure

  1. x(n) is periodic
  2. Real
  3. Even
  4. Finite energy
Q.16.

Two coils X ofturns and Y ofturns are placed such thatof the flux produced by coil X links coil Y. A current of 1 A in coil X produces 0.1 wb flux. The mutual inductance between coils is

Q.17.

The Nyquist sampling rate for the signal s(t) = is given by

Q.18.

The number of distinct Boolean expressions of 3 variables is

Q.19.

The region between a pin of parallel perfectly conducting planes of infinite extent is y and z directions is partially filled with a dielectric as shown below.

AGHz TE10 wave is incident on the air-dielectric interface. The value of reflection coefficient at the interface is

Q.20.

The following Variable Entered Map (VEM) represents which of the following function:

Q.21.

Consider the circuit shown below of 2 : 1 MUX is given by the function g = ac + bc

Then f is :

Q.22.

In a synchro error detector, the output voltage is proportional to [ω(t)]n, where ω(t) is the rotor velocity and n equals :

Q.23.

To realize following function 'f',

How many minimum number of 2 input NAND gates are required?

Q.24.

In the circuit s closed for a long time and steady state is reached. s is opened at t = 0+ Determine current through resistor.

Q.25.

Consider an angle modulated signal
x(t) = 6cos[2p x 106t + 2sin(8000pt) + 4cos(8000pt)] V
The average power of x(t) is

Q.26.

In the circuit shown, the power supplied by the voltage source

Q.27.

An LTI system having transfer function and input x(t) = sin (t +is in steady state. The output is sampled at a rate ωs rad/s to obtain the final output {y(k)}. Which of the following is true?

Q.28.

Two coils X ofturns and Y ofturns are placed such thatof the flux produced by coil X links coil Y. A current of 1 A in coil X produces 0.1 wb flux. The mutual inductance between coils is

Q.29.

An air-filled rectangular waveguide has dimensions 8cm x 10cm . The group velocity is

Q.30.

The following Variable Entered Map (VEM) represents which of the following function:

Q.31.

The following Variable Entered Map (VEM) represents which of the following function:

Q.32.

Consider the circuit shown below of 2 : 1 MUX is given by the function g = ac + bc

Then f is :

Q.33.

The minimal function that can detect a "divisible byBCD code digit (representation D8D4D2D1) is given by

Q.34.

The minimal function that can detect a "divisible byBCD code digit (representation D8D4D2D1) is given by

Q.35.

A lossless transmission line iscm long and operates at a frequency ofMHz. Inductance and capacitances present in a line are 0.5 μH/m andpF/m. Phase constant and phase velocity are respectively.

Q.36.

If . dt, then F[y(t)] is

Q.37.

If . dt, then F[y(t)] is

Q.38.

Two D flip-flop as shown below are to be connected as a synchronous counter that goes through the following Q1Q0 sequence
→→→→→ __________
The inputs D0 and D1 respectively should be connected as

Q.39.

Consider the sequence x(n) whose fourier transform X(e) is depicted for - p ≤ ω ≤ p as shown in figure

  1. x(n) is periodic
  2. Real
  3. Even
  4. Finite energy
Q.40.

In the circuit shown, the power supplied by the voltage source

Q.41.

Consider an angle modulated signal
x(t) = 6cos[2p x 106t + 2sin(8000pt) + 4cos(8000pt)] V
The average power of x(t) is

Q.42.

The Nyquist sampling rate for the signal s(t) = is given by

Q.43.

An air-filled rectangular waveguide has dimensions 8cm x 10cm . The group velocity is

Q.44.

If . dt, then F[y(t)] is

Q.45.

In the circuit shown, the power supplied by the voltage source

Q.46.

An LTI system having transfer function and input x(t) = sin (t +is in steady state. The output is sampled at a rate ωs rad/s to obtain the final output {y(k)}. Which of the following is true?

Q.47.

Two D flip-flop as shown below are to be connected as a synchronous counter that goes through the following Q1Q0 sequence
→→→→→ __________
The inputs D0 and D1 respectively should be connected as

Q.48.

A system with transfer function H(z) has impulse response h(.) defined as h(=h(= -1 and h(k) = 0 otherwise. Consider the following statements
SH(z) is a low pass filter
SH(z) is a FIR filter.
Which of the following is correct?

Q.49.

Two discrete time systems with impulse responses h1[n] = δ[n -and h2[n] = δ[n -are connected in cascade. The overall impulse response of the cascaded system is

Q.50.

(29)13 ÷ (29)12 x (29)x = (23)16 Find x