Networks, Signals and Systems [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 136 - 140 of 141

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Question 136

Networks, Signals and Systems
Fourier Series and Fourier Transform Representations

Appeared in Year: 2020

Question

is the Fourier transform of x (t) shown below? The value of (rounded off to two decimal places) is ________

Question 137

Networks, Signals and Systems
Steady State Sinusoidal Analysis Using Phasors

Appeared in Year: 2020

Question

The current in the RL-circuit shown below is i (t) = .

The value of the inductor (rounded off to two decimal places) is … H.

Question 138

Networks, Signals and Systems
Discrete-Time Fourier Transform (DTFT), DFT, FFT

Appeared in Year: 2020

Question

MCQ▾

A finite duration discrete time signal x (n) is obtained by sampling the continuous time signal,

at sampling instants, . The 8-point DFT and is defined as

Which is true?

Choices

Choice (4)Response

a.

Only and are non-zero

b.

All are non-zero

c.

Only and are non-zero.

d.

Only is non-zero.

Question 139

Networks, Signals and Systems
Fourier Series and Fourier Transform Representations

Appeared in Year: 2021

Question

Consider the signals and

Where is the unit step sequence. Let and be the discrete-time Fourier transform of and , respectively. The value of the integral

(Rounded off to one decimal place) is ________

Question 140

Networks, Signals and Systems
Frequency Domain Analysis of RLC Circuits

Appeared in Year: 2021