Name:()vda
(1
One
8.5xll
formula page allowed.
Otherwise, closed book, closed notes, no calculators.
Work
each problem in the area provided.
You may use the back of the test sheets for scratch area, but
they will not be graded. Show your work neatly.
Point valuesfor each problem are given. Put your
name on each page.
There are 6 short problems on this exam. None of them should take more than four or five lines
of work to solve. So if you start down a path that is going to fill a page STOPAND THINK. You're
making it too hard.
Problem 1 (20 pts).
Write the meshcurrent equation for the central mesh(A) below, assuming
there are other meshes as labeled. If no mesh current is shown in an area, assume that this is the
edge of the circuit  there are no additional
meshes beyond those shown.
Your equation should
be ready to be solved for the mesh currents (assumingyou did the same for all the other meshes).
R
11
R
1
R
10
+:
.
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t'
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t
R
9
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Name
J'Yc{Cl
(1
10/17/08
Problem 2 (15 pts).
You need to first characterize, then predict the output of an unknown "black
box" linear circuit that takes a current
i
1
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 Fall '07
 MATHYS
 The Circuit, power supply, Series and parallel circuits, Voltage drop

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