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### All_Problems ECE 45

Course: ECE ECE 45, Winter 2010
School: UCSD
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UCSD - ECE - ECE 45
UCSD - ECE - ECE 45
ECE 45 SYLLABUS WINTER 2010WEEK 1, 2 - LINEAR TIME INVARIANT (LTI) SYSTEMS (3.3, 3.5, Appendix C) *Review of Complex Arithmetic Definition and Examples of Linear Time Invariant Systems (LTI) Superposition 1st Order Systems 2nd Order Systems n-th Order S
UCSD - ECE - ECE 35
QUIZ 2 ECE35 Win10NAME _ SID _+For the familiar circuit at right, (1) What voltage does the voltmeter read? Vmeasured = _ (2) What is the current i20? i20 = _A 4Voltmeter-i20=?2 4 B3mANow the voltmeter is replaced by an ideal current meter, conn
UCSD - ECE - ECE 35
QUIZ 3 ECE35 Win10NAME _ SID _ Solution4 For the familiar circuit at right, (1) Write KCL for a supernode including both voltage supplies using v1, v2 and v3, as variables. v1/4 + v2/8 + v3/4 2 + 2 = 012V4v3(2) Write the same equation using only v1
UCSD - ECE - ECE 35
QUIZ 1 ECE35 Win09 For the familiar circuit at right,NAME _ SID _(1) What is the resistance of the resistor R? R = _ (2) What is the voltage across the current source? V = _
UCSD - ECE - ECE 35
University of California San Diego Department of Electrical and Computer EngineeringECE 35 Final Exam Winter 2009Name (Last, First) _ Student ID Number _Signature _This is a closed book exam, but you are allowed a single 8.5 x 11 page sheet of notes.
UCSD - ECE - ECE 35
University of California San Diego Department of Electrical and Computer EngineeringECE 35 Midterm Exam Winter 2009Name (Last, First) _ Student ID Number _Signature _This is a closed book exam, but you are allowed a single 8.5 x 11 page sheet of notes
UCSD - ECE - ECE 35
QUIZ 1 ECE35 Win10NAME _ SID _For the familiar circuit at right, where R = 5, Is=3A, Vs=15V (1) What is the current i? i = _ (2) What is the power provided by the voltage source? Pvs = _ (3) What is the power provided by the current source? Pcs = _+i
UCSD - ECE - ECE 45
ECE35 Win10 Homework 1 Solutions Assignment: Read Chapters 1 and 2, skim Chapter 3, and do at least the following problems: P1.5-4, P1.7-3, P2.2-5, P2.4-5, P2.5-2, P2.6-1, P2.6-5, P2.7-7, P2.9-3, and DP2-2 (design problem) P1.5-4 a.) Assuming no more ener
UCSD - ECE - ECE 45
ECE35 Win10 Homework 2 Solutions Assignment: Finish reading chapter 3, and do at least the following problems: Problems: 3.2-8, 3.2-9, 3.2-10, 3.3-4, 3.3-7, 3.3-8, 3.4-4, 3.4-9, 3.4-14, 3.5-1, 3.6-1, 3.6-8, 3.6-15, 3.6-28, Design Problem 3-3 P3.2-8P3.2-9
UCSD - ECE - ECE 35
ECE35 Winter 2010 Homework 3 Solutions Assignment: Problems 4.2-4, 4.3-2, 4.3-4, 4.3-12, 4.4-3, 4.4-5, 4.4-9, 4.5-2, 4.5-6, 4.6-3, 4.6-5 P4.2-4Node equations:When v1 = 1 V, v2 = 2 VP4.3-2Comment: can do this more easily by KCL at supernode, expressing
UCSD - ECE - ECE 35
ECE35 Win10 Homework 4 Solutions Problems 5.2-3, 5.2-5, 5.3-11, 5.4-1, 5.4-5, 5.4-6, 5.4-16, 5.5-2, 5.5-6, 5.5-8, 5.6-1, 5.6-5 P5.2-3Source transformation at left; equivalent resistor for parallel 6 and 3 resistors:Equivalents for series resistors, seri
UCSD - ECE - ECE 35
ECE35 Winter 2010 Homework 5 Solutions Chapter 6: 6.3-1, 6.3-7, 6.4-4, 6.4-5, 6.4-6, 6.4-11, 6.4-17, 6.5-6; Begin Chapter 7: 7.2-13, 7.3-1 (no plot) P6.3-1P6.3-7P6.4-4 Ohms law:KVL:P6.4-5P6.4-6KCL at node b:KCL at node a:This is correct.So. Nope
UCSD - PHYS 2B - 2b
Problem4. A 2-g ping-pong ball rubbed again st a wool jacket acquir es a net positiv e charge of 1 C . Estimate th e fraction of the b alls electrons that hav e been r emoved.Solution= If half the balls mass is protons, their numb er (equal to the o ri
UCSD - PHYS 2B - 2b
CHAPTER 23Problem57. A proton moving to the right at 3.8 ! 10 m s enters a r egion wh ere a 56 k N/C electr ic field points to / the lef t. (a) How far will th e proton get b efore its sp eed r eaches zero? (b) Describ e its subsequ ent motion.5Soluti
UCSD - PHYS 2B - 2b
chapter 24 Gausss law Problem32. Repeat Problem 26, assuming that Fig. 24-45 represents the cross section of a long, thick-walled pipe. Now the case a = 0 should be consistent with the result of Problem 31 for the interior of the rod.SolutionSuppose th
UCSD - PHYS 2B - 2b
Problem7. Four identical charges q, initially widely separated, are brought to the vertices of a tetrahedron of side a (Fig. 26-26). Find the electrostatic energy of this configuration.FIGURE 26-26Problem 7.SolutionThere are six different pairs of eq
UCSD - PHYS 2B - 2b
Problem2. An electron moving at right angles to a 0.10-T magnetic field experiences an acceleration of 6.0 101 5 m/s2. (a) What is the electrons speed? (b) By how much does its speed change in1 ns (= 10 9 s) ?Solution(a) If the magnetic force is the o
UCSD - PHYS 2B - 2b
Problem2. A sing le-turn w ire loop is 2.0 cm in d iameter and carries a 6 50-mA current. Find the magnetic f ield strength (a) at th e loop center and (b) on the loop axis, 20 cm from th e cen ter.SolutionEquation 30-3 gives: (a) at th e center, x = 0
UCSD - PHYS 2B - 2b
Problem8. Each atom in aluminum contributes about 3.5 conduction electrons. What is the drift speed in a 0.21-cm-diameter aluminum wire carrying 20 A?SolutionAs in Example 27-1, the drift speed of electrons in the wire is v d = I = 1 d 2 )ne, where n i
UCSD - PHYS 2B - 2b
Problem5. A 1.5-V battery stores 4.5 kJ of energy. How long can it light a flashlight bulb that draws 0.60 A?SolutionThe average power, supplied by the battery to the bulb, multiplied by the time equals the energy capacity of the battery. For an ideal
UCSD - PHYS 2D - 2D
1. (a) Using formula for relativistic addition of velocities, we have (measuring velocities to the right as positive) Velocity of spaceship B relative to A = 1 (0.6c)(0.6 c) / c 2 = - 1.2 c/(1+ 0.36) = - 0.88 c (moving to left) = say (b) Let proper length
UCSD - PHYS 2B - 2b
PHYS 2B Quiz 1 SolutionsAris January 15, 20101Problem 1To nd x0 , solve for k (3q ) k (q ) 2 + (x a)2 = 0 x0 0(1)The rst term is the eld due to the charge at the origin; the second due to the charge at distance a from the origin. Sum the two elds to
UCSD - PHYS 2B - 2b
PHYS 2B Quiz 2 SolutionsAris January 24, 20101Problem 1From Gausss law, we know the electric eld of a uniformly charged sphere with charge density 4r3 = E 4r2 30 r E= 3o We are informed that E (r = R R )=5= 2 6o (3)(1) (2)Rewriting as the total char
UCSD - PHYS 2B - 2b
PHYS 2B Quiz 3 SolutionsAris February 1, 20101Problem 1At P1 , the contribution to the potential due to the charges above and below cancel out. The net contribution is due solely to the charge on the left, at distance d1 = (a/2)2 + a2 )1/2 away. This
UCSD - PHYS 2D - 2D
Ph~\C5?Oti:C'5-&lt;;c)&quot;O(\S,#- I~ 1'\t' \-csr'Ph O+Oe' -e d'ir K'C'._euc. ~\~r\c.C- (ASS)C~ \r~ :c~ ~t~\oY1LAJ',. () k.,J \,0CVI'd&lt;2J.A1- Todr-csv. \tr- ih if\C_XL~e.dG2ltr'\'lJ k)~k\Y\&lt;:'l1G eY'e&lt;o~ot- the etuA-&lt;t&gt;f\S -N'-d,'Lrs. C
UCSD - PHYS 2D - 2D
(1) (a) By Braggs Law, n =2 d sin (n=1,2,) Lowest reflection corresponds to smallest , i.e. n=1 so = 2 (2.08. 10-10) sin 15 m = 1.077. 10-10 m E = hf = hc/ = (4.136.10-15 eV.s) (3 . 108 m.s-1)/ (1.077. 10-10 m) = 11.52 . 103 eV = 11.52 KeV (b) By Comptons
UCSD - PHYS 2B - 2b
PHYS 2B Quiz 4 SolutionsAris February 7, 20101Problem 1From Ohms law J1 = E1 /1 . The current is I = J1 b2 , i.e. the current density times the cross-sectional area. The same amount of current ows through the narrow and thick cylinders. Hence I = J1 b
UCSD - PHYS 2B - 2b
~Sic.SI~'0Gkti:tSo\L.l-tto~'S-F1:lYl V'f&quot; \IeL 0)a-.c.c.'cfw_'.\ -\e.d -\-h\OU-j h &lt;:&lt; v.V )W &quot;-0\r0.+V;2&gt;&quot;c-t \ S-th -e.OV\M() e-V\-\-v.-VV\ M?C&lt;JY\Sei\fo.-hJO~ 0V\e~J.,'?- v I ~ )s.Y'lV=~d'M.~-1&quot;1r ~ J&quot; t &quot;ryV (I JC,
UCSD - PHYS 2D - 2D
(1) (a) Applying conservation of relativistic momentum we have 1m1 (0.4 c) = g 2 m2 (0.6 c) where 1 =1 1 - (0.4 )2 ,g 2 = 1 1 - (0.6 )2, so1 (0.4 )2 0.6 m1 = 2 = 1.72 2 (1) 1 (0.6 )2 0.4Conservation of total energy gives 1m1c 2 + g 2 m2 c 2 = Mc 2 o
UConn - ME - 3260
ME 3260Homework #1MEASUREMENT TECHNIQUES Due on February 16, 2010 Dr. B. Zhang (Instructor) UTE Building, Room 384 Phone: 486-2072 Office Hours 11:00-12:00 (Mon &amp;Wed) and by appointment zhang@engr.uconn.edu1. A strain gage having a nominal resistance o
UConn - ME - 3260
Notes on Lab #1 Measurement of Internal Pressure of a Soda Can Prepared by Bi Zhang 1. Your report is due a week of time from the day of your lab section. 2. Your report should be a team report (with your team mates). 3. For those whose lab sections were
UConn - ME - 3260
ME 3260 Measurement TechniquesDefinition of Terms Measurement ErrorsInstructor: Dr. B. ZhangContents Terms Accuracy &amp; Repeatability Errors Random (non-repeatable) Systematic (repeatable) Significant Figures Figures UnitsBi Zhang, UConn1Measuremen
UConn - ME - 3260
ME 3260 Measurement Techniques2010Report Grading Policy1. Long Report: Overall quality (5%) Acknowledgment of existing knowledge (5%) Completeness of reported work (5%) Correctness of reported work (10%) Reference &amp; Appendix (5%) Clarity in writing, fi
UConn - ME - 3260
Estimation of Internal Pressure of an Unopened Aluminum Soda CanA Lab ReportSubmitted By Student names: Student A Student B Student CME 3260 Measurement TechniquesInstructor: Bi Zhang Department of Mechanical Engineering University of ConnecticutFebr
UConn - ME - 3260
ME 3260 Lab Report Preparation GuidelinesInstructor: Bi Zhang Spring 2010 Past experience shows that even the best students often do not present a well-written, clear lab report which is a significant input towards their final grades in this course. The
UConn - ME - 3260
ME 3260Report Writing GuidelinesBi Zhang Mechanical Engineering University of Connecticut Spring 2010Report Writing Guidelines Group report Lead writer rotation Up to 6 pages for short report, up to 15pages for long report 1.5 line spacing 25 mm (1
UConn - ME - 3260
ME 3260 Measurement TechniquesStress and Strain MeasurementsInstructor: Dr. B. ZhangContents Hookes Law Relates stress and strain Principle of strain gages? Gauge factor (G.F.) Wheatstone bridge Strain gage applications Temperature compensationBi Z
Georgia Tech - ECON - 2106
ECON 2106-C Professor Byung-Cheol Kim ByungWhat is economics? . . . The word economy comes from a Greek word for one who who a household.The management of household management of societys resources is important because resources are . Scarcity means tha
Georgia Tech - ECON - 2106
THE ECONOMIST AS A SCIENTISTThe economic way of thinking . . .Involves thinking analytically and objectively. Makes use of the scientific method. to help explain how a complex, real Uses world operates. Develops , collects and analyzes data to evaluate
Georgia Tech - ECON - 2106
ECON 2106-C Professor Byung-Cheol KimConsider your typical day: You wake up to an alarm clock made in Korea. You pour yourself orange juice made from Florida oranges and coffee from beans grown in Brazil. You put on some clothes made of cotton grown in
Georgia Tech - ECON - 2106
ECON 2106-C Professor Byung-Cheol KimLearning Objectives What a competitive market is. What determines the demand and the supply for a good in a competitive market. How supply and demand together set the price of a good and the quantity sold. How prices
Georgia Tech - ECON - 2106
More ApplicationsWhat happened in the Market for Eggs? Demand Supply Price Egg ConsumptionWhat happened in the Market for College Education? Demand Supply Annual Cost Student EnrollmentWhat happened in the Market for Copper?What happened in the Market
Georgia Tech - ECON - 2106
ECON 2106-C Prof. Byung-Cheol KimTHE ELASTICITY OF DEMAND The is a measure of how much the quantity demanded of a good responds to a change in the price of that good. When we talk about elasticity, the responsiveterms. ness is always measured in Specifi
Georgia Tech - ECON - 2106
Name: _ Class: _ Date: _ID: APractice Midterm 1Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. _ 1. Which of the following statements best represents the principle represented by the adage, &quot;
Georgia Tech - ECON - 2106
EC2106CTenPrinciplesofEconomics(Ch.1)Professor:ByungCheolKimPracticeProblem1 1. Economics deals primarily with the concept of a. scarcity. b. poverty. c. change. d. power. 2. Economics is the study of a. production methods. b. how society manages its s
Georgia Tech - ECON - 2106
ECON 2106-CFall 2008 Byung-Cheol KimPractice Problem for Chapter 2Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. _ 1. Economists make assumptions in order to a. mimic the methodologies emplo
Georgia Tech - ECON - 2106
ECON 2106-CPractice Problem 3Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. _ 1. Consider a shoemaker and a vegetable farmer. Potentially, trade could benefit both individuals if a. the shoem
Georgia Tech - ECON - 2106
ECON 2106-CPractice Problems for Ch 4.Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. _ 1. Which of the following statements is correct? a. Buyers determine supply and sellers determine demand
Georgia Tech - ECON - 2106
ECON 2106-CProf. B-C KimPractice Problems for Ch.5Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. _ 1. The price elasticity of demand measures how much a. quantity demanded responds to a chan
Georgia Tech - INTA - 2100
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The Decision for War: SpartaCorinthian tacticsDescribe the Athenian character, resulting from its institutions, as one incapable of peaceful coexistence, not the current crisis.These tactics were used obscure recent history and drive the Spartans towar
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Study GuideINTA 2100 Exam 1Define/Identify: Anarchy Anarchy is the absence of structured order and authority. A main premise of realist theory is that anarchy prevails in the international system due to the absence of a central authority. Balance of Powe
Georgia Tech - INTA - 2100
Georgia Tech - INTA - 2100
THUCYDIDES HISTORY OF THE P ELOPONNESIAN'WARTranslated by R ex Warner with an Introduction and Notes b y M . I. FinleyPENGUIN B OOKSqnaBOO= PIVB96~twcbOtbdydothiDk;dnccyoa~wasdaswcdo that, when these m#enarc d i d by practical paopk, the standard o
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Morgenthau's RealismA Discourse on PowerA Realist Theory of International Politics Political behavior is governed by laws Human nature determines those laws Human nature, as evidenced by 'historical precedent (4)', creates an imperfect world Realist The