2023 2024 Student Forum > Management Forum > Jobs

 
  #2  
26th July 2014, 02:32 PM
Super Moderator
 
Join Date: Apr 2013
Re: GATE Electronics & Communications stream Exam Previous Papers

Here I am giving you question paper for GATE Electronics & Communications stream Examination in a PDF file attached with it so you can get it easily.

In a baseband communications link, frequencies upto 3500 Hz are used for signaling. Using a
raised cosine pulse with 75% excess bandwidth and for no inter-symbol interference, the maximum
possible signaling rate in symbols per second is
(A) 1750 (B) 2625 (C) 4000 (D) 5250
Q.4 A plane wave propagating in air with V/m ) ˆ 5 ˆ 6 ˆ 8 ( ) 4 3 ( y x t j
z y x e a a a E      w

is incident on a
perfectly conducting slab positioned at 0  x . The E

field of the reflected wave is
(A) V/m ) ˆ 5 ˆ 6 ˆ 8 ( ) 4 3 ( y x t j
z y x e a a a      w
(B) V/m ) ˆ 5 ˆ 6 ˆ 8 ( ) 4 3 ( y x t j
z y x e a a a      w
(C) V/m ) ˆ 5 ˆ 6 ˆ 8 ( ) 4 3 ( y x t j
z y x e a a a      w
(D) V/m ) ˆ 5 ˆ 6 ˆ 8 ( ) 4 3 ( y x t j
z y x e a a a      w

Q.5 The electric field of a uniform plane electromagnetic wave in free space, along the positive
x direction, is given by   x j
z y e a j a E 25 ˆ ˆ 10   

. The frequency and polarization of the wave,
respectively, are
(A) 1.2 GHz and left circular (B) 4 Hz and left circular
(C) 1.2 GHz and right circular (D) 4 Hz and right circular

Q.6 Consider the given circuit.
A
B
CLK
In this circuit, the race around
(A) does not occur (B) occurs when CLK = 0
(C) occurs when CLK = 1 and A = B = 1 (D) occurs when CLK = 1 and A = B = 0

Q.7 The output Y of a 2-bit comparator is logic 1 whenever the 2-bit input A is greater than the 2-bit
input B. The number of combinations for which the output is logic 1, is
(A) 4 (B) 6 (C) 8 (D) 10

Q.8 The i-v characteristics of the diode in the circuit given below are
The current in the circuit is
(A) 10 mA (B) 9.3 mA (C) 6.67 mA (D) 6.2 mA

Q.9 In the following figure, C1 and C2 are ideal capacitors. C1 has been charged to 12 V before the ideal
switch S is closed at t = 0. The current i(t) for all t is
C1
t = 0
C2
i(t)
S
(A) zero (B) a step function
(C) an exponentially decaying function (D) an impulse function
Q.10 The average power delivered to an impedance ) 3 4 ( j  by a current ) 100 100 ( cos 5  t  A is
(A) 44.2 W (B) 50 W (C) 62.5 W (D) 125 W
Attached Files
File Type: doc GATE Electronics & Communications stream Exam Papers.doc (234.0 KB, 82 views)


Tags
previous papers

Quick Reply
Your Username: Click here to log in

Message:
Options

Thread Tools Search this Thread



All times are GMT +5. The time now is 05:07 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
SEO by vBSEO 3.6.0 PL2

1 2 3 4