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Electric Circuits and Networks, Ist Edition by Pearson
book

Electric Circuits and Networks, Ist Edition by Pearson

by K. S. Suresh Kumar
May 2024
Intermediate to advanced content levelIntermediate to advanced
840 pages
45h 20m
English
Pearson India
Content preview from Electric Circuits and Networks, Ist Edition by Pearson
The Fourier transforms of cosine and sine functions are shown in Fig. 14.7-1.
593
14.8 FOURIER TRANSFORMS OF SOME SEMI-INFINITE DURATION WAVEFORMS
Re(V(j ))
cos
1
1
–1
–1
t
ω
Im(V(j ))
ω
ω
ππ
π
π
ω
ω
π
0
ω
0
t
ω
0
sin
t
ω
0
t
ω
0
ω
0
ω
0
ω
0
2
π
π
2
π
2
π
π
π
2
π
Fig. 14.7-1 Fourier transforms of Unit Cosine and Unit Sine Waveforms
14.8 FOURIER TRANSFORMS OF SOME SEMI-INFINITE DURATION
WAVEFORMS
Inputs, even if they are periodic waveforms, are switched on to the circuit at some finite
time-instant. This fact is usually brought out by specifying an input function as f(t) u(t), where
f(t) is a periodic or aperiodic waveform. A DC voltage of V applied to the circuit from t 0
is specified as ...
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Publisher Resources

ISBN: 9781299447028