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Fall 2015 BEE Practice Test
Basic EE 4400:307
Fall, 2015
Practice Test #1
Do all work in the space provided, including EXTRA SHEET at end if needed.
You may refer to one sheet of prepared notes.
1) In the circuit shown, consider the voltage source a
Basic EE
Fall 2015
P1.
Homework Assignment #3
Due Sept. 23, 2015
(2.43) For the circuit shown, find
(a) the equivalent resistance seen by the
source,
(b) the current i,
(c) the power delivered by the source,
(d) the voltages v1 and v2, and
(e) the minimum
ANSWERS, BEE Practice Test 1 Fall 2015
1)
a. I = -2A
b. v = -6V
c. P2A = 22W (Delivered)
2) Vs = 1V, rS = 33.333, N = 3, ILED = 0.013A
i (mA)
iLED (A)
LED V-I Characteristic Curve
0.05
40
0.04
30
0.03
20
=0.013A (aprox)
10
0.02
0.01
0.00
1.0
0.0
2.0 V (Vo
Basic EE
Fall 2015
P1.
Homework Assignment #2
Due 16 Sept. 2015
(2.4) The charge cycle shown is an example of a two-rate charge. The current is held
constant at 50 mA for 5 h. Then it is switched to 20 mA for the next 5 h.
Battery voltage
2.0 V
1.75 V
Bat
Website to download the HEC softwares:
http:/www.hec.usace.army.mil/software/hec-hms/downloads.aspx
The most current version for HEC-HMS is 4.1
Step 1: create new project
The default unit system are metric and U.S. customary, in the drop-down box
Choose t
Basic EE
Fall 2015
P1.
Homework Assignment #1
Due 9 September 2015
Review of linear algebra. Find the solution (x,y,z) to the following system of equations.
x 2y 2
3x 4y 5z 3
6y 7z 4
P2.
Review of complex arithmetic. Define the imaginary number j 1 . Reca
Basic EE
Fall 2015
Node, Mesh
Homework Assignment #4
Sept. 28, 2015
P1.
(3.3) For the circuit shown, use node
voltage analysis to determine the voltage v
across the 0.25- resistance.
P2.
(3.14) For the circuit shown, use mesh
current analysis to determine