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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
Network theorems 55
2 = 5/, + 6/
2
Equation 4.6 x 5 20 = 35/, + 25/
2
Equation 4.7 x 7 14 = 35/, + 42/
2
Subtracting 6 = - 17/
2
(4.7)
h = = -0.353 A
17
Substituting in equation (4.6)
4 = 7/, + 5(-0.353)
7/,
= 4 + 1.765 =
5.765
5.765
7
/1
= 0.824 A
The negative sign for /
2
indicates that the current is flowing in the
opposite direction to the assumed direction. The circuit conditions
are shown in Figure 4.7. Note the polarity of the voltages, and that
the voltage between the top and bottom rails is 2.35 V, which is a
confirmation that the calculated currents are correct.
0.824 A
0.353 A
0.471 A
1.65 V
2 ft 2.35 V
4V
5 n 0.35 V
1 ft
2 V
Figure
4.7 ...
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Publisher Resources

ISBN: 9781483101132