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Newnes Circuit Calculations Pocket Book
book

Newnes Circuit Calculations Pocket Book

by Thomas J. Davies
April 2016
Intermediate to advanced content levelIntermediate to advanced
384 pages
12h 56m
English
Newnes
Content preview from Newnes Circuit Calculations Pocket Book
62 Circuit calculations pocket book
15
ft
20
ft
5ft
j-
10V
Figure
4.20
Figure
4.21
0.737
x 20
h = =
0.421
A
15
+ 20
Superimposing Figures
4.18 and 4.20
shows that currents
in
15
ft = /, - /
6
= 1.053 - 0.421 =
0.632
A
20
ft = 7
3
+ /
5
=
0.2106
+ 0.316 =
0.562
A
5
ft = I
2
- h =
0.842
-
0.737
= 0.105 A
4.3
Thevenin's theorem
The theorem
is
concerned with active resistive networks,
i.e.
networks containing
one or
more sources
of e.m.f., and the
method
of finding
the
current
in any
resistor within
the
network.
To find
the
current
in a
resistor connected between
two
points
A
and
B in a
complex circuit, proceed
as
follows:
1 Remove
the
resistor
R
fro ...
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Publisher Resources

ISBN: 9781483101132