Electronics and Communication Engineering (ECE) Exam  >  Electronics and Communication Engineering (ECE) Tests  >  GATE ECE (Electronics) Mock Test Series 2025  >  Practice Test: Electronics Engineering (ECE)- 9 - Electronics and Communication Engineering (ECE) MCQ

Practice Test: Electronics Engineering (ECE)- 9 - Electronics and Communication Engineering (ECE) MCQ


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30 Questions MCQ Test GATE ECE (Electronics) Mock Test Series 2025 - Practice Test: Electronics Engineering (ECE)- 9

Practice Test: Electronics Engineering (ECE)- 9 for Electronics and Communication Engineering (ECE) 2024 is part of GATE ECE (Electronics) Mock Test Series 2025 preparation. The Practice Test: Electronics Engineering (ECE)- 9 questions and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus.The Practice Test: Electronics Engineering (ECE)- 9 MCQs are made for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Practice Test: Electronics Engineering (ECE)- 9 below.
Solutions of Practice Test: Electronics Engineering (ECE)- 9 questions in English are available as part of our GATE ECE (Electronics) Mock Test Series 2025 for Electronics and Communication Engineering (ECE) & Practice Test: Electronics Engineering (ECE)- 9 solutions in Hindi for GATE ECE (Electronics) Mock Test Series 2025 course. Download more important topics, notes, lectures and mock test series for Electronics and Communication Engineering (ECE) Exam by signing up for free. Attempt Practice Test: Electronics Engineering (ECE)- 9 | 65 questions in 180 minutes | Mock test for Electronics and Communication Engineering (ECE) preparation | Free important questions MCQ to study GATE ECE (Electronics) Mock Test Series 2025 for Electronics and Communication Engineering (ECE) Exam | Download free PDF with solutions
Practice Test: Electronics Engineering (ECE)- 9 - Question 1

The inverse z - transform of 

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Practice Test: Electronics Engineering (ECE)- 9 - Question 2

Find the cube root of 11 using Newton iteration formula.

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Practice Test: Electronics Engineering (ECE)- 9 - Question 3

The taylor series expansion of given by

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Practice Test: Electronics Engineering (ECE)- 9 - Question 4

The fourier sine transform of 

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Practice Test: Electronics Engineering (ECE)- 9 - Question 5

For a series RLC circuit, which one of the following statement is NOT correct

Practice Test: Electronics Engineering (ECE)- 9 - Question 6

The circuit shown above is initially relaxed. At t = 0, the switch is closed. At t = 1 sec, the current i(t) is

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Practice Test: Electronics Engineering (ECE)- 9 - Question 7

The concentration of minority carriers in an extrinsic semiconductor under equilibrium is

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Practice Test: Electronics Engineering (ECE)- 9 - Question 8

An N-channei JFET has a pinch-off voltage of -4.5V and lDSS = 9mA. At what value of VGs will ID equal to 3 mA

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Practice Test: Electronics Engineering (ECE)- 9 - Question 9

The ratio of the mobility and the diffusion co-efficient in a semiconductor has units

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Practice Test: Electronics Engineering (ECE)- 9 - Question 10

The input resistance Ri of the amplifier shown is

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Practice Test: Electronics Engineering (ECE)- 9 - Question 11

The cascade amplifier configuration is

Practice Test: Electronics Engineering (ECE)- 9 - Question 12

The following circuit functions as

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*Answer can only contain numeric values
Practice Test: Electronics Engineering (ECE)- 9 - Question 13

For the circuit shown in figure, if the clock frequency is 10KHz, the frequency of the waveform at the output Q is _____________KHz


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*Answer can only contain numeric values
Practice Test: Electronics Engineering (ECE)- 9 - Question 14

The Boolean function y = AB + CD is to be realized using only 2-input NAND gates. The minimum number of gates required is __________


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Practice Test: Electronics Engineering (ECE)- 9 - Question 15

The trigonometric fourier series for the wave form shown below contains

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Practice Test: Electronics Engineering (ECE)- 9 - Question 16

Let x(n) and y(n) represents the input and output of a discrete-time system, which one of the following is not a causal system.

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Practice Test: Electronics Engineering (ECE)- 9 - Question 17

The average value (d.c) for the waveform shown below is

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Practice Test: Electronics Engineering (ECE)- 9 - Question 18

Consider an angle modulation signal x(t) = 4 [2π x 10s t + 3 sin(6000π t) + 4 cos(8000πt)]v.

The average power of x(t) is

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Practice Test: Electronics Engineering (ECE)- 9 - Question 19

For a message signal m(t) = cos(2πfmt) and carrier of frequency fC, which of the following represents a single side band (SSB) signal

Practice Test: Electronics Engineering (ECE)- 9 - Question 20

The capacitor of Gaussian channel of band width 4KHz, with noise PSD 10-9 wHz. When the signal Energy is 0.1. J.

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Practice Test: Electronics Engineering (ECE)- 9 - Question 21

The transfer function of a system is given by  The system is

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Practice Test: Electronics Engineering (ECE)- 9 - Question 22

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Practice Test: Electronics Engineering (ECE)- 9 - Question 23

A 555 astable oscillator with R1 = 40 kΩ, R2 = 120 kΩ and C = 4.0 μF will oscillate at

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Practice Test: Electronics Engineering (ECE)- 9 - Question 24

The magnetic field intensity vector of a plane wave is given by   = 10sin (5000t + 0.004x + 30)  where denotes the unit vector in y direction. The wave is propagated with a phase velocity of

Practice Test: Electronics Engineering (ECE)- 9 - Question 25

In the wave equationwhich term is responsible for attenuation of the wave?

Practice Test: Electronics Engineering (ECE)- 9 - Question 26

Match each differential equation in Group - I to its family of solution curves from Group - n.

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Practice Test: Electronics Engineering (ECE)- 9 - Question 27

dr where 'c' is curve y = 4x2 in xy plane from (0, 0) to (1,4).

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Practice Test: Electronics Engineering (ECE)- 9 - Question 28

For the matrix one of the eigen values of the matrix P is 3, which of the following is

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Practice Test: Electronics Engineering (ECE)- 9 - Question 29

Consider the two independent random vanabies X and Y with identical distnbutions. The variables X and Y take the values 0, 1, 2. 3. 4 with respective probabilities  What is the conditional probability P(X + Y = 4/X - Y = 0)?

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Practice Test: Electronics Engineering (ECE)- 9 - Question 30

The driving point impedance of the foilowing network is given by The component values are

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