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GATE-EC-Section-Test-9

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Question 1

The input impedance (Z_i) and the output impedance (Z₀) of an ideal transconductance (voltage controlled current source) amplifier are

Question 2

What would be the bandwidth of the output signal of SSB-AM (USB) modulator illustrated below when the bandwidth of the baseband message signal is 3 kHz and c(t) = 2sin(200 * 10³ πt).

Question 3

A source alphabet consists of N symbols with the probability of the first two symbols being the same. A source encoder increases the probability of the first symbol by a small amount ε and decreases that of the second by ε. After encoding, the entropy of the source

Question 4

In the Karnaugh map shown below, X denotes a don't care term. What is the minimal form of the function represented by the Karnaugh map?

Question 5

A coaxial cable with an inner diameter of 1 mm and outer diameter of 2.4 mm is field with a dielectric of relative permittivity 10.89. Given

, the characteristic impedance of the cable is

Question 6

Two series resonant filter are as shown in the figure. Let the 3-dB bandwidth of Filter 1 be B₁ and that of 2 be B₂. The value of

Question 7

The unit-step response of a system starting from rest is given by c(t) = 1-e^-2t for t ≥ 0.
The transfer function of the system is:

Question 8

dipole is kept horizontally at a height of

above a perfectly conducting infinite ground plane. The Radiation Pattern in the plane of the dipolw (

plane) looks approximately as

Question 9

Following is the segment of a 8085 assembly language program:

On completion of RET execution, the contents of SP is:

Question 10

A discrete random variable X takes values from 1 to 5 with probabilities as shown in the table. A student calculates the mean of X as 3.5 and her teacher calculates the variance of X as L. Which of the following statements is true?

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ESE & GATE EC Analog Circuits

Nov 2ESE & GATE EC