EEL3111C Fall 2013
HW 8
Due Oct 16, 2013
Problem 1. Derive the current divider formula for two inductors shown. Are there any conditions
attached in using the formula?
Problem 2. A rectangular voltage pulse is applied at the input terminals A and B of an
EEL3111C Fall 2013
HW 3
Due Sep 11, 2013
Problem 1. Find the equivalent resistance Rab for each of the circuits in Fig.P3.6.
Problem 2. The ammeter in the circuit in Fig. P3.33 has a resistance of 0.1 . What is the percentage of
error in the reading of th
EEL3111C Fall 2013
HW 9
Due Oct 23, 2013
Problem 1.
a) Derive the equations for and find vo the following circuit assuming that all diodes are ideal.
b) Determine the value for vo for the previous problem if the diodes were not ideal but instead had
0.7V
University of Florida
Department of Electrical & Computer Engineering
EEL 3111
- Summer 2011
Drs. E. M. Schwartz & R. Srivastava
Ode Ojowu, TA 2-Jun-11
Page 1/5
Revision 0
Lab 3: Theorems and the Wheatstone Bridge
OBJECTIVES To reinforce and verify the co
EEL3111C Fall 2013
HW 7
Due Oct 9, 2013
Problem 1. The current in a 50 mH inductor is known to be iL = 18t 10 A for t > 0.
a) Find the voltage across the inductor for t > 0. Assume the passive sign convention is obeyed.
b) Find the power (in microwatts) a
An iPod with a 630 mAh lithium ion battery is to be charged from a
high-power USB port supplying 150 mA of current. At the beginning of
the recharge, 7.8 C of charge are stored in the battery. The recharging
process halts when the stored charge reaches 35
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Lecture 11 Problem Set w Soln
Find the maximum power transferred to RL.
1k
12V
1k
4mA
1k
2k
RL
Lecture11problemset(2/2)
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Lecture 11 Problem Set w Soln (2/3)
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Lecture 11 Problem Set w Soln (3/3)
4/6
Lecture 16 Problem Set w Soln
1/100x10E-6
5/6
Lecture 16 Problem Set w Soln (2/3)
Two initially uncharged capacitors of equal capacitance are connected
to the Thevenin's equivalent of a DC circuit until a DC steady-state is
reached. In which of the fo
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Lecture 10 Problem Set w Soln
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Lecture 10 Problem Set w Soln (2/3)
Two voltage sources (V1, V2) are supplying power to a resistive load RL through the
network shown below. If we want each power supply to source the same amount of
current through
The op amp in the circuit shown is ideal.
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Lecture 14 Problem Set w Soln
The op amp in the circuit shown is ideal.
2/6
Lecture 14 Problem Set w Soln (2/3)
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Lecture 17 Problem Set w Soln
2/7
Lecture 17 Problem Set w Soln (2/4)
3/7
Lecture 17 Problem Set w Soln (3/4)
4/7
Lecture 17 Problem Set w Soln (4/4)
In the circuit shown, all the node voltages have been assigned.
Write all the equations necessary and sufficient for nodal analysis. Do
NOT simplify or solve the equations. You MUST number the equations
to be graded. Unnumbered equations will be not grade
Show that impedance of a resistor in series with a capacitor can never
be equivalent to that of a resistor in parallel with an inductor.
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Lecture 27 Problem Set w Soln (2/3)
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Lecture 27 Problem Set w Soln (3/3)
mV
70.71 mV
1/3
Lecture 23 Problem Set w Soln
*Note the solution is for when v(t) = 170 sin 120 (pi)t
*Note the solution is for when v(t) = 170 cos 120 (pi)t
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Lecture 23 Problem Set w Soln (2/3)
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Lecture 24 Problem Set w Soln (3/3)
3/3
Lecture 23 Pr
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Lecture 25 Problem Set w Soln
Consider the frequency-domain AC circuit shown. The circuit
operates at 159.15 Hz.
(a) Find the equivalent impedance seen by the source. Give your
answer in any form, but you must use decimals and truncate at
three signif
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Lecture 20 Problem Set w Soln
2/9
Lecture 20 Problem Set w Soln (2/6)
3/9
Lecture 20 Problem Set w Soln (3/6)
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Lecture 20 Problem Set w Soln (4/6)
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Lecture 20 Problem Set w Soln (5/6)
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Lecture 20 Problem Set w Soln (6/6)
EEL3111C
Lecture24
1. Given: X = 4+j1 and Y = 3 - j6 ; find the following in rectangular and polar form.
a) X+Y
b) X/Y
a) 7-j5, 8.6<-35.5 degrees
b) 0.13+j0.6, 0.61<77.5 degrees
2. Given:
Y = 1 + 2j
(3 + j ) X + (1 - 2j) Y = 0
Find X in rectangular form.
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Lecture 21 Problem Set w Soln
2/6
Lecture 21 Problem Set w Soln (2/4)
Correction: V, not A
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Lecture 21 Problem Set w Soln (3/4)
4/6
Lecture 21 Problem Set w Soln (4/4)
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Lecture 07 Problem Set w Soln
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Lecture 07 Problem Set w Soln (2/3)
The ammeter in the following circuit has a resistance of 0.1 ohms.
What is the percentage of error in the reading of this ammeter?
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Lecture 07 Problem Set w Soln (3/3)
In the circuit shown, all the mesh currents have been assigned.
Write all the equations necessary and sufficient for mesh analysis.
Do NOT simplify or solve the equations. You MUST number the equations
to be graded. Unnumbered equations will be not graded
ECE 3135
Homework #5
1. Solve the following linear difference equations for
(a)
;
(
(b)
) ,
(
(c)
) ,
(
(d)
(e)
(f)
( )
) ,
,
.
(g)
2. Consider an LTI system with the input and output related by
(a) Find the system impulse response
by following its defini
Homework #2, EEL 3135
[ ]
9.13. Suppose that the signals
[ ]
(
[ ]
[ ]
)
[ ] are given by
(
)
[ ]
(
)
(a) Determine whether [ ] is periodic. If so, determine the number of samples per
fundamental period.
(b) Determine whether [ ] is periodic. If so, deter
ECE 3135
Homework #4
1. Suppose that a system is described by each of the following system equations. Find and
sketch the impulse response of the system.
[
]
(a) [ ]
[
]
(b) [ ]
[ ]
[
]
[
]
(c) [ ]
[ ]
2. Consider an LTI system with the input and output
EEL 3135
Homework #1
Discrete-time Signals
9.1. Determine which of the following discrete-time functions is different:
[ ]
(a) [ ]
[
]
(b) [ ]
[
]
[ ]
(c) [ ]
[ ]
[ ]
(d) [ ]
[
]
9.2. The discrete-time signal
[ ] in Figure P9.2 are zero except as shown.
ECE 3135
Homework #3
A1. Let
be the population of a certain country at the beginning of the nth year. The birth and death
rates of the population during any year are 3.3 and 1.3%, respectively. If
is the total number of
immigrants entering the country dur