EE 210
Lab Exam 2 Review
Fall 2013
For lab exam 2 you should know how to do the following:
1. Construct a circuit on a breadboard that has two power supplies and/or a function generator.
2. Use a voltmeter to measure voltages across circuit elements as we
EE 210
Hour Exam 1
Name_
September 6, 2012
1. Answer the following questions for the circuit below. VB is 10 volts
A) Write an expression for the voltage across the resistor R.
B) Find the value of R such that the total power dissipated in the two resisto
EE 210
Hour Exam 2
Name_
October 11, 2012
1. Find the Thevenin equivalent circuit for the circuit in the figure below. Show all work.
2. The following op-amp circuit is supposed to have a gain of -2. Answer the following
questions about the circuit.
A) As
EE 210
Exam 2 Review Problems
October 10, 2013
Dr. Blandford
1. In the circuit below Vi = 3 volts. What is the value of Vo. Show all work.
2. For each circuit below determine the output voltage Vo if Vi = 3 volts.
A)
B)
C)
Vo = _
Vo = _
Vo = _
3. In the c
EE 210
Hour Exam 3
Name_
November 20, 2012
1. A step function is applied to an RLC series circuit and the output is found to be given
by:
v(t ) = e t / sin(0t ) where 0 and are constants. What is the equation for the impulse
response of the circuit?
2. Yo
EE 210
Review Problems for Hour Exam 3
November 15, 2012
1. The characteristic equation for a given circuit is given by
S 2 3S K 0
Find the range of values for K for which the system is over damped. Show all work.
2. Consider the characteristic equation g
EE 210
Final Exam Review Sheet
December 10, 2013
Final exam is Monday, December 16 at 8:00am
The final exam will be made up of questions that are similar to those on the hour exams.
One good way to review is to rework the hour exams.
Here are some questio
EE 210
MATLAB Plots
1. Use MATLAB to plot the voltage vs. time function for the capacitor voltage in the circuit
below for t > 0.
SOLUTION:
For t < 0 the switch is closed and the capacitor can be
treated as an open circuit since the voltage has stabilized
EE 210
Mesh Example
Find the value of the mesh currents i1 and i2.
By inspection
i1 = 10.
For mesh 2
-2(i2 i1) -2i2 10 = 0
or
2i1 4i2 = 10
Substituting i1 = 10 we get
-4i2 = -10
or i2 = 2.5ma
1. Use mesh analysis to determine the value of voltage at node
EE 210
Nodal Analysis Example 1
1. Use Nodal analysis and MATLAB to find the voltages at nodes A, B, C, and D.
Solution
At Node A
V VA
10 + B
= 0 which simplifies to
0.5
-2VA + 2VB = -10
(1)
At Node B
VA VB VC VB
= 0 which simplifies to
+
0.5
0.3
2VA 5.33
EE 210
Nodal Analysis Example 2
1. Use Nodal analysis and MATLAB to find the voltages at nodes A, B, C, and D.
Solution
At Node A
VA = 12
(1)
Nodes B and C form a Supernode
At the Supernode BC
VA VB VB VC
= 0 which simplifies to
2
6
2
0.5VA VB 0.167VC = 0
EE 210
RC Transient Response
In the circuit below the capacitor is uncharged and the switch is in position a. At t = 0, the
switch is moved to position b. After 15 msec the switch is moved again to position c.
A) Find the expression for the voltage across
EE 210
Parallel RLC Notes
KCL
t
v1
dv
vdt C
0
R L
dt
or
d 2v
1 dv
v
0
2
dt
RC dt LC
This is a second order linear differential equation with constant coefficients
Characteristic equation :
1
1
s2
s
0
RC
LC
Roots are:
2
s1
Let
1
2RC
0
2
1
1
1
1
1
1
a
EE 210
Series RLC Notes
KVL
t
di 1
Ri L idt 0
dt C
or
d 2i R di
i
0
2
dt
L dt LC
This is a second order linear differential equation with constant coefficients
Characteristic equation :
R
1
s2 s
0
L
LC
Roots are:
2
s1
Let
R
2L
0
2
R
1
R
1
R
R
and s2
EE 210
Thevenin Examples
1. Find the current io using Thevenin's equivalent circuit.
Replace the circuit except for the 2K resistor with
io in it with a Thevenin equivalent.
To find Rth we note that there are no dependent
sources so we can short the volta