Exam #2 Prep Questions
a)
Use the Figures at the end of
this document to answer the following questions.
1.
Calculate the power dissipated by each resistor in
Figure 1
when R1 = 2
Ω
,
R2=5
Ω
, R3=10
Ω
, R4=8
Ω
, R5=3
Ω
, V1=4V, V2=2V, and I1=2A.
(Ignore the
1K
Ω
resistor value on the diagram for R1. R1=2
Ω).
Resistor
Power
2
Ω
74.4W
10
Ω
.1W
5
Ω
5W
8
Ω
6.5W
3
Ω
1.3W
2.
Calculate the power being delivered by the each voltage and current source in
Figure 2
when R1 = 6
Ω
, R2=4
Ω
, R3=5
Ω
, R4=15
Ω
, R5=3
Ω
, R6=2
Ω
, V1=10V,
I1=2.5A, and I2=4A.
Source
Power
Delivering/Absorbing
10V
65W
Delivering
2.5A
23.75W
Delivering
4A
134W
Delivering
3.
Calculate the power being delivered by each current source in
Figure 3
when
I1=2mA, I2 = 5mA, R1=500
Ω
, R2=2k
Ω
, R3=6k
Ω
, R4=5k
Ω
, R5=1.5k
Ω
, and
R6=7k
Ω
, R7=1k
Ω
Source
Power
Delivering/Absorbing
5mA
121mW
Delivering
2mA
54.8mW
Delivering
4.
Using
Figure 4
, find the power delivered or supplied by the 10V source using a
series
of
source
transformations.
(R1=30K
Ω
,
R2=30K
Ω
,
R3=15K
Ω
,
R4=R5=1.5K
Ω
, R6=13K
Ω
).
P
10V
= 8.5mW (delivering)
5.
Find the power absorbed by each resistor in
Figure 6
.
Resistor
Power
10
Ω
0W
40
Ω
160W
20
Ω
80W
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Exam #2 Prep Questions
6.
Using a series of source transformations, find the power dissipated in the 40
Ω
resistor in
Figure 6
.
P
40
Ω
=
160W
7.
Prove that power is conserved in
Figure 7
when V1=20V, V2=40V, V3=10V,
R1=1
Ω
, R2=2
Ω
, R3=2
Ω
, and R4=4
Ω
.
W
400
P
P
absorbed
delivered
=
=
∑
∑
8.
Find the power dissipated in R4 in
Figure 7
when V1=20V, V2=40V, V3=10V,
R1=1
Ω
, R2=2
Ω
, R3=2
Ω
, and R4=4
Ω
. Use a source transformation approach to
This is the end of the preview.
Sign up
to
access the rest of the document.
 Fall '06
 MCCANN
 Resistor, SEPTA Regional Rail, Jaguar Racing, 1.5K

Click to edit the document details