ECE 231 HW-5.pptx-ECE-231 Circuits and S...
ECE_231_HW-5.pptx-ECE-231 Circuits and Systems I Fall
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ECE 231 HW-5.pptx-ECE-231 Circuits ...
ECE_231_HW-5.pptx-ECE-231 Circuits and Systems I Fall
##### Page 1
ECE-231
Circuits and Systems I
Fall ’11
HW Set #5
Dr. Stewart Personick
ECEC-321
sdp2@verizon.net

##### Page 2
Problem #1
+
-
1.5 volts
R1= 2 ohms; R2= 12 ohms; R4= 6 ohms
Use superposion
to solve for i
1
, and to solve for
v
ab
R1
R2
Node a
Node b
R4
0.5A
i
1

##### Page 3
Problem #2
+
-
100 volts
Using superposion
to solve for the open circuit
voltage and for the short circuit current:
produce the Thevenin equivalent circuit for the
”black box” above
50 ohms
2A
A
B

##### Page 4
Problem #3
+
-
100 volts
What is the maximum power (in was) that this
box could deliver to an external load resistor
placed between A and B?
50 ohms
2A
A
B
External
load
resistor

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