of GATE Exam Electronics and Communication (EC) with Answer Key PDF. Here we have published links to previous year solved papers of GATE exam for. “where to find gate previous years question papers pdf? where to find gate EC, Electronics and Communication Engineering, Download. EE, Electrical. Below table has GATE Electronics and Communication Engineering previous year question papers for last 29 years from in free pdf format. GATE.

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Get all set of GATE ECE question papers with solution. Download free PDF for GATE Electronics & Communication previous year. GATE Examination Solved Question Papers (Previous Years) GATE Papers with Answer Keys free download last 5 year Gate Solved Paper. Electronics and Communication Engineering; Electrical Engineering; Ecology pdf-download- icon. View and download GATE Electronics previous years (past) papers for years , GATE Electronics Communication Paper (Download PDF) · GATE Get fully-solved GATE aptitude question bank: Step-by-step.

The 2 marks questions include two pairs of common data questions and two pairs of linked answer questions. INR B The input impedance increases and output impedance also increases. The input is 0 or 1 with equal probability. GATE Books. Com Uploaded by aglasem.

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Free Notes. IES Total Info. IES Books. Free Mock Tests. JAM Total Info. JAM Books. Engg Diploma. Note on Negative Marking for Wrong Answers For a wrong answer chosen for the multiple choice questions, there would be negative marking. However, there is no negative marking for a wrong answer in numerical answer type questions. English grammar, sentence completion, verbal analogies, word groups, instructions, critical reasoning and verbal deduction.

Numerical Ability: Numerical computation, numerical estimation, numerical reasoning and data interpretation. Matrix Algebra, Systems of linear equations, Eigen values and eigen vectors.

Mean value theorems, Theorems of integral calculus, Evaluation of definite and improper integrals, Partial Derivatives, Maxima and minima, Multiple integrals, Fourier series.

Differential equations: First order equation linear and nonlinear , Higher order linear differential equations with constant coefficients, Method of variation of parameters, Cauchy's and Euler's equations, Initial and boundary value problems, Partial Differential Equations and variable separable method. Complex variables: Analytic functions, Cauchy's integral theorem and integral formula, Taylor's and Laurent' series, Residue theorem, solution integrals.

Probability and Statistics: Numerical Methods: Solutions of non-linear algebraic equations, single and multi-step methods for differential equations.

Fourier transform, Laplace transform, Z-transform. Electronics and Communication Engineering Networks: Network graphs: Solution methods: Network theorems: Steady state sinusoidal analysis using phasors. Linear constant coefficient differential equations; time domain analysis of simple RLC circuits, Solution of network equations using Laplace transform: State equations for networks.

Electronic Devices: Energy bands in silicon, intrinsic and extrinsic silicon. Carrier transport in silicon: Generation and recombination of carriers. Device technology: Analog Circuits: Simple diode circuits, clipping, clamping, rectifier.

Frequency response of amplifiers. Simple op-amp circuits. Sinusoidal oscillators; criterion for oscillation; single-transistor and op-amp configurations. Function generators and wave-shaping circuits, Timers. Power supplies. Digital circuits: Combinatorial circuits: Sequential circuits: Semiconductor memories.

Microprocessor Signals and Systems: Sampling theorem. Signal transmission through LTI systems. Control Systems: Basic control system components; block diagrammatic description, reduction of block diagrams. Open loop and closed loop feedback systems and stability analysis of these systems.

Signal flow graphs and their use in determining transfer functions of systems; transient and steady state analysis of LTI control systems and frequency response. Tools and techniques for LTI control system analysis: Control system compensators: State variable representation and solution of state equation of LTI control systems. Random signals and noise: Analog communication systems: Fundamentals of information theory and channel capacity theorem.

Digital communication systems: Elements of vector calculus: Wave equation, Poynting vector. Plane waves: Transmission lines: Basics of propagation in dielectric waveguide and optical fibers.

Basics of Antennas: Dipole antennas; radiation pattern; antenna gain. To login, enter your Registration Number and password provided to you. Kindly go through the various symbols used in the test and understand their meaning before you start the examination. Once you login and after the start of the examination, you can view all the questions in the question paper, by clicking on the View All Questions button in the screen.

Both these sections are compulsory. The GA section consists of 10 questions. Question numbers 1 to 5 are of 1-mark each, while question numbers 6 to 10 are of 2-mark each.

The subject specific GATE paper section consists of 55 questions, out of which question numbers 1 to 25 are of 1-mark each, while question numbers 26 to 55 are of 2-mark each. Depending upon the GATE paper, there may be useful common data that may be required for answering the questions.

If the paper has such useful data, the same can be viewed by clicking on the Useful Common Data button that appears at the top, right hand side of the screen. The computer allotted to you at the examination center runs specialized software that permits only one answer to be selected for multiple-choice questions using a mouse and to enter a suitable number for the numerical answer type questions using the virtual keyboard and mouse.

Your answers shall be updated and saved on a server periodically and also at the end of the examination. The examination will stop automatically at the end of minutes. In each paper a candidate can answer a total of 65 questions carrying marks. The question paper may consist of questions of multiple choice type MCQ and numerical answer type. The candidate has to choose the correct answer by clicking on the bubble placed before the choice. For numerical answer type questions, each question will have a numerical answer and there will not be any choices.

For these questions, the answer should be enteredby using the virtual keyboard that appears on the monitor and the mouse. All questions that are not attempted will result in zero marks. For all MCQ questions a wrong answer will result in deduction of marks for a 1-mark question and marks for a 2-mark question.

Non-programmable type Calculator is allowed. You must use the Scribble pad provided to you at the examination centre for all your rough work. The Scribble Pad has to be returned at the end of the examination. Declaration by the candidate: I have read and understood all the above instructions. I have also read and understood clearly the instructions given on the admit card and shall follow the same.

I also understand that in case I am found to violate any of these instructions, my candidature is liable to be cancelled. I also confirm that at the start of the examination all the computer hardware allotted to me are in proper working condition. The aircraft take off as soon as its flight plan was filed. A is allowed to B will be allowed to C was allowed to D has been allowed to Q.

All women are entrepreneurs. Some women are doctors. Which of the following conclusions can be logically inferred from the above statements? Many ancient cultures attributed disease to supernatural causes.

A impel B dispel C propel D repel Q. Who is the most consistent batsman of these four? Batsman Average Standard deviation K All people with incomes above Rs 10 lakh should fill up Form R, except non residents with income above Rs 15 lakhs, who should fill up Form S.

All others should fill Form T. An example of a person who should fill Form T is A a resident male with annual income Rs 9 lakh B a resident female with annual income Rs 9 lakh C a non-resident male with annual income Rs 16 lakh D a non-resident female with annual income Rs 16 lakh Q. What is the length of the platform in metres? A B C D Q.

You choose a coin at random and toss it, and it comes up heads. The value of the integral. Clock pulses at a frequency of 1 MHz are applied as shown. B periodic with period 2.

D not periodic. The Nyquist plot of is also shown. Which one of the following conclusions is correct? A is an all-pass filter B is a strictly proper transfer function C is a stable and minimum-phase transfer function D The closed-loop system is unstable for sufficiently large and positive Q. The first load draws 10 kW at 0.

A forward bias of 0. The electron concentration at the edge of the depletion region on the p-side is A 2. Which one of the following is the complete set of essential prime implicants?

Which one of the following options preserves the state diagram? A Input A is connected to 2.

D does not exist. Which one of the following compensators achieves this? The parameter is a function of bit energy and noise power spectral density. A system with two independent and identical AWGN channels with noise power spectral density.

The BPSK demodulator receives the sum of outputs of both the channels. Let L be the number of tosses to get this first Head. Neglecting fringe effects, a reduction of the spacing between the plates by a factor of two results in A halving of and no change in B no changes in and halving of C no change in both and D halving of both and Q. Communication and interpersonal skills are important in their own ways.

A each B both C all D either Q. A will get some rest B gets some rest C will be getting some rest D is getting some rest Q. A bear, loosing B bare, loosing C bear, losing D bare, losing Q. If a very large number of throws show the following frequencies of occurrence: On every step of the ladder there are two lights. If one of the lights is red, the other light on that step will always be blue.

If one of the lights on a step is green, the other light on that step will always be yellow. Which of the following statements is not necessarily correct? A The number of red lights is equal to the number of blue lights B The number of green lights is equal to the number of yellow lights C The sum of the red and green lights is equal to the sum of the yellow and blue lights D The sum of the red and blue lights is equal to the sum of the green and yellow lights Q.

The average of four consecutive even numbers is