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IES preparation for Electronics & Communication Engineering

(14 Posts)

This thread is dedicated to preparation for Electronics & Communication Engineering - EC section of IES (Indian Engineering Services). You may share questions related to topics like Digital Circuits, Control System, Signals and System, Network Graphs, Electronic Devices, Communications, Analog Circuits, Electromagnetics etc

Question should not exceed 100 characters.Use add options for multiple choice questions and "Uploadimage/Add related data" for passage text papers.
Question should be at least 10 characters long.
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Utsav Kakkad
Shared from Communications on Apr 20, 2017 12:27 PM

Observe the oscilloscope display and find out the efficiency of AM system.

"

 
7.75%
11.11%
20%
17.88%
Please type your answer before submitting.

20

Dilpreet Arora
Posted on Apr 01, 2016 3:59 PM

If = xy + x2 then over the path shown in the figure is

 
0
1
2
Please type your answer before submitting.

Yup, no error in ques..........the answer can be calculated according to VECTOR CALCULUS.

Jagadeesh Kumar
Posted on Mar 24, 2016 2:27 PM

The residues of a complex function X(z) = at its poles are

 
, and 1
, and –1
, 1 and
, –1 and
Please type your answer before submitting.

Question is wrong it must be 1-2z/z(z-1)(z-2)