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