EE 250 Winter 2010
University of Alberta HOMEWORK 3 (due Monday Jan 25th, 2010) Instructor : Karthik Shankar
(Make sure your answers show the work in solving the problem. If the final answer is wrong,
EE 250 Winter 2010
University of Alberta HOMEWORK 3 (due Monday Jan 25th, 2010) Instructor : Karthik Shankar
(Make sure your answers show the work in solving the problem. If the final answer is wrong,
EE 250 Winter 2010 HOMEWORK 2
University of Alberta Instructor : Karthik Shankar
(The ten problems are arranged in order of increasing difficulty. Make sure your answers show the work in solving the p
EE 250 Winter 2010
University of Alberta HOMEWORK 8 (due Mar 8st , 2010) Instructor : Karthik Shankar [10 POINTS]
1.
2.
[10 POINTS]
3. Find the Z-parameters of the two port network in the figure below
SOLUTIONS TO HOMEWORK 1 1. i = 530 A v = 25 108 V
2. iC = 28.27 cos(45 t + 18) mA iC = 28.2718 mA
3. vL = 82.87 sin(350 t + 80) V = 82.87 cos(350 t 10) V vL = 82.87 10 V
4.
vL = L Wmax di = 50(e 5000t
EE 250 Winter 2010
University of Alberta HOMEWORK 7 (due Mar 1st , 2010) Instructor : Karthik Shankar
1. A series resonant circuit has a Q of 120 and a resonant frequency of 10,000 rad s-1. Determine
EE 250 Winter 2010
University of Alberta HOMEWORK 5 (due Monday Feb 8th, 2010) Instructor : Karthik Shankar
(Make sure your answers show the work in solving the problem. If the final answer is wrong,
EE 250 Winter 2010 University of Alberta SOLUTIONS TO HOMEWORK 2 Instructor : Karthik Shankar (The ten problems are arranged in order of increasing difficulty. Make sure your answers show the work in
EE 250 Winter 2010
University of Alberta HOMEWORK 5 (due Monday Feb 8th, 2010) Instructor : Karthik Shankar
(Make sure your answers show the work in solving the problem. If the final answer is wrong,
EE 250 Winter 2010 HOMEWORK 1
University of Alberta Instructor : Karthik Shankar
1. Convert the following into phasor form :
i = 5 cos(45t + 30) A v = 25sin(32 t 18) V 2. Find the current flowing in a
EE240-A2-2010
Assignment #3
Due October 13, 2010
Hand in detailed solutions to problems 1 and 2 for marks.
Practice problems with solutions will be posted in the course wewbsite.
Make sure you use the
EE240-A2-2010
Assignment #4
Due October 20, 2010
Hand in detailed solutions to problems 1 and 2 for marks.
Practice problems with solutions will be posted in the course website.
Make sure you use the
EE240-A2-2010
Assignment #5
Due November 10, 2010.
Each question is worth 2 marks.
Make sure you use the REAL UPDATED EE240-A2 Cover Sheet!
http:/www.ece.ualberta.ca/~mcmullin/EE240-2010/EE240-A2-Cove
EE240-A2-2010
Assignment #7
1. In this industrial situation, find the power factor
of the load accounting for power lost in the line.
RLINE = 0.1
Load
40 kW @
240VRMS
Power Co.
44 kW
2. In this indust
EE240-A2-2010
Assignment #6
1. Find the average power supplied by the
source.
SOLUTION
2. Find the average power supplied by each
source by determining both the voltage and
current for each . Check th
EE240-A2-2010
1.
Assignment #5
SOLUTION
Use the supernode technique to find I0
1. CONT'D
2. Find V0 by Mesh Analysis
2. CONT'D
3. Use Norton's Theorem to find I0. Treat the 2
resistor as the load.
3.
EE240-A2-2010
Assignment #4
SOLUTION
1. Maximum Power Transfer Problem:
Find the resistor RL for maximum power transfer and the power absorbed in it. Use the
Thevenin Equivalent Circuit approach.
1. F
EE240-A2-2010
Assignment #2
SOLUTION
Variable Current Motor Controller
The problem is to design a variable current divider (as in the circuit diagram
below) which varies the current in a 10- motor bet
EE240-A2-2010
Assignment #1
SOLUTION
Power-Limited Voltage Divider
The problem is to design a voltage divider (as in the circuit diagram below) in which the
output voltage is a predetermined fraction,
EE240-A2-2010
Assignment #8
1. A single-phase, 3-wire, 60-Hz
circuit serves three loads as shown
to the right. Determine IaA, IC, InN
and the energy use in kW-Hrs over
a 24-hour day.
2. Find V0 in thi
EE240-A2-2010
Assignment #7
1. In this industrial situation, find the
power factor of the load accounting for
power lost in the line.
Due November 24, 2010
2. In this industrial situation, the load
po
EE240-A2-2010
Assignment #6
1. Find the average power supplied by the
source.
2. Find the average power supplied by each
source by determining both the voltage
and current for each . Check that the
po
EE240-A2-2010
Assignment #2
Due October 4, 2010.
Problems 1 to 4 are for practice only do not hand in solutions for these
but keep them to compare with the solutions posted later.
Only hand in a solut
EE240-A2-2010
Assignment #1
Due September 24, 2010.
Problems 1 to 4 are for practice only do not hand in solutions for these
but keep them to compare with the solutions posted later.
Only hand in a so
EE 250 Winter 2010
University of Alberta HOMEWORK 4 (due Monday Feb 1st, 2010) Instructor : Karthik Shankar
(Make sure your answers show the work in solving the problem. If the final answer is wrong,
EE 250 Winter 2010
University of Alberta HOMEWORK 4 (due Monday Feb 1st, 2010) Instructor : Karthik Shankar
(Make sure your answers show the work in solving the problem. If the final answer is wrong,
EE 250 Winter 2010
University of Alberta HOMEWORK 6 (due Monday morning 10 am Feb 22, 2010) Instructor : Karthik Shankar
1. The midterm exam is on Feb 22, 2010 at 5 pm during the seminar. Please turn
EE 250 Winter 2010
University of Alberta HOMEWORK 6 (due Monday morning 10 am Feb 22, 2010) Instructor : Karthik Shankar
1. The midterm exam is on Feb 22, 2010 at 5 pm during the seminar. Please turn
EE 250 Winter 2010
University of Alberta HOMEWORK 7 (due Mar 1st , 2010) Instructor : Karthik Shankar
1. A series resonant circuit has a Q of 120 and a resonant frequency of 10,000 rad s-1. Determine