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GATE 2005 : Electronics And Communication Engineering

24 pages, 89 questions, 21 questions with responses, 21 total responses,

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For more files visit www.educationobserver.com/forum Q.1 Q.30 carry one mark each 1. The following differential equation has 3 d 2y dt 2 3 dy 2 + 4 +y +2 = x dt (a) degree=2, order=1 (c) degree=4, order=3 2. (b) degree=3, order=2 (d) degree=2, order=3 Choose the function f ( t ) ; < 1 < + , for which a Fourier series cannot be defined. (a) 3sin(25t) ( (b) 4cos(20t+3)+2sin(10t) ) (c) exp t sin(25t) 3. A fair dice is rolled twice. The probability that an odd number will follow an even number is (a) 4. (d) 1 1 2 (b) 1 6 (c) (d) 1 4 A solution of the following differential equation is given by d 2y dx 2x (a) y = e +e 2 5 dy + 6y = 0 dx 3 x (b) y = e2 x + e3 x (c) y = e 2 x + e3 x 5. 1 3 (d) y = e 2 x + e 3 x The function x(t) is shown in figure. Even and odd parts of a unit-step function u(t) are respectively. x(t) 1 0 t -1 (a) 1 1 , x (t ) 2 2 (b) 1 1 , x (t ) 2 2 (c) 1 1 , x (t ) 2 2 (d) 1 1 , x (t ) 2 2

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Additional Info : Solved GATE exam paper study guide - gate 2005 : electronics and comm. engg. free online question paper
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