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GATE 1999 : Electronics And Communication Engineering

15 pages, 80 questions, 20 questions with responses, 22 total responses,

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For more files visit www.educationobserver.com/forum SECTION - A 1. This question consists of TWENTY-FIVE sub-questions (1.1 1.25) of ONE mark each. For each of these sub-questions, four possible alternatives (A,B, C and D) are given, out of which ONLY ONE is correct. Indicate the correct answers in the boxes corresponding to the questions only on the FIRST sheet of the answer book. 1.1 Identify which of the following is NOT a true of the graph shown in Fig.P1.1 a (a) begh (b) defg (c) adfg 2 1 (d) aegh c 3 b d e f g h 4 1.2 The z-transform F(z) of the function f ( nT ) = anT is (a) 1.3 z T z a (b) z (c) T z+a z T z a (d) z z + a T If f (t ) = F ( s ) , then f (t T ) is equal to (a) esT F ( s ) 1.4 5 (b) e sT F ( s ) (c) F (s) 1+e sT (d) F (s) 1 e sT A 2-port network is shown in Fig.P1.4. the parameter h21 for this network can be given by + R I1 V1 10 F I2 + R R V2 - - (a) 1.5 1 2 (b) + 1 2 (c) 3 2 The early effect in a bipolar junction transistor is caused by (a) fast turn-on (b) fast turn-off (c) large collector-base reverse bias (d) large emitter-base forward bias (d) + 3 2

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Additional Info : Solved GATE exam paper study guide - gate 1999 : electronics and comm. engg. free online question paper
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