Electronics and Communication Engineering
GATE ECE topic:electronics PYQs
Build your understanding with focused practice from past exam papers.
Questions 411–420 of 715. Imported answers require independent review unless marked reviewed.
Question 11
Open questionECMCQ1 markNeeds review
The pole-zero map of a rational function
is shown below. When the closed contour
is mapped into the
-plane, then the mapping encircles 
Your answerChoose one option.
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Open questionECMCQ1 markNeeds review
A digital communication system transmits a block of
bits. The probability of error in decoding a bit is
. The error event of each bit is independent of the error events of the other bits. The received block is declared erroneous if at least one of its bits is decoded wrongly. The probability that the received block is erroneous isYour answerChoose one option.
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Open questionECMCQ1 markNeeds review
The impedances
, for all
in the range
, map to the Smith chart asYour answerChoose one option.
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Open questionECMCQ1 markNeeds review
Which one of the following pole-zero plots corresponds to the transfer function of an LTI system characterized by the input-output difference equation given below?
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Open questionECNAT1 markNeeds review
In the given circuit, the two-port network has the impedance matrix
The value of
for which maximum power is transferred to the load is ______
. 
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Open questionECNAT1 markNeeds review
The current in the RL-circuit shown below is
A. The value of the inductor (rounded off to two decimal places) is ______ H. 
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Open questionECNAT1 markNeeds review
In the circuit shown below, all the components are ideal and the input voltage is sinusoidal. The magnitude of the steady-state output
(rounded off to two decimal places) is ______ V. 
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Open questionECNAT1 markNeeds review
In the circuit shown below, all the components are ideal. If
is +2 V, the current
sourced by the op-amp is ______ mA. 
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Open questionECNAT1 markNeeds review
In an 8085 microprocessor, the number of address lines required to access a 16 K byte memory bank is ______.
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Open questionECNAT1 markNeeds review
A 10-bit D/A converter is calibrated over the full range from 0 to 10 V. If the input to the D/A converter is 13A (in hex), the output (rounded off to three decimal places) is ______ V.
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