GATE Question Bank for ECE

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As per your requirement here I am uploading two pdf file having the GATE Question Bank for ECE. You can use this question paper in your studies. If you need more question papers then please let me know and I will provide you the same. You can download the question paper from here after doing registration; this is absolutely free for you…

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	GATE Question Bank For ECE 1.pdf (244.0 KB, 102 views)
	GATE Question Bank For ECE 2.pdf (222.6 KB, 105 views)

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Answered By StudyChaCha Member

Here I am giving you question paper for the electronic and communication engineering branch of GATE examination ..

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


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

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

A source alphabet consists of N symbols with the probability of the first two symbols being the
same. A source encoder increases the probability of the first symbol by a small amount  and
decreases that of the second by  . After encoding, the entropy of the source
(A) increases (B) remains the same
(C) increases only if N = 2 (D) decreases

A transmission line with a characteristic impedance of 100 is used to match a 50 section to a
200 section. If the matching is to be done both at 429 MHz and 1 GHz, the length of the
transmission line can be approximately
(A) 82.5 cm (B) 1.05 m (C) 1.58 m (D) 1.75 m

A binary symmetric channel (BSC) has a transition probability of 1/8. If the binary transmit symbol
X is such that P(X=0) = 9/10, then the probability of error for an optimum receiver will be
(A) 7/80 (B) 63/80 (C) 9/10 (D) 1/10


With 10 V dc connected at port A, the current drawn by 7  connected at port B is
(A) 3/7 A (B) 5/7 A (C) 1 A (D) 9/7 A

Q.49 For the same network, with 6 V dc connected at port A, 1  connected at port B draws 7/3 A.
If 8 V dc is connected to port A, the open circuit voltage at port B is
(A) 6 V (B) 7 V (C) 8 V (D) 9 V

For more questions I am attaching PDF files with it so you can get it easily..

Attached Files Available for Download

	GATE ECE paper.pdf (340.9 KB, 32 views)
	GATE ECE paper 1.pdf (328.3 KB, 36 views)
	GATE ECE paper with answer.pdf (695.5 KB, 49 views)