18.0 V hs 5.00 N 8.00 0 12.0 V 11.0 0 7.00 N + 5.00 N I36 36.0 V Figure P18.30

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter38: Refraction And Images Formed By Refraction
Section: Chapter Questions
Problem 70PQ: A Fill in the missing entries in Table P38.70. Table P38.70
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For the circuit shown in Figure Pl8.30, use Kirchhoff's rules to obtain equations for (a) the upper loop, (b) the lower loop and (c) the node on the left side. In each case suppress units for clarity and simplify, combining like
terms. (d) Solve the node equation for l36. (e) Using the equation found in (d), eliminate l36 from the equation found in part (b). (f) Solve the equations found in part (a) and pan (e) simultaneously for the two unknowns for l18 and  l12, respectively. (g) Substitute the answers found in part (f) into the node equation found in part (d ), solving forl36 . (h) What is the significance of the negative answer for l12?

18.0 V
hs
5.00 N
8.00 0
12.0 V
11.0 0
7.00 N
+
5.00 N
I36
36.0 V
Figure P18.30
Transcribed Image Text:18.0 V hs 5.00 N 8.00 0 12.0 V 11.0 0 7.00 N + 5.00 N I36 36.0 V Figure P18.30
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