# Register now to access 7 million high quality study materials (What's Course Hero?) Course Hero is the premier provider of high quality online educational resources. With millions of study documents, online tutors, digital flashcards and free courseware, Course Hero is helping students learn more efficiently and effectively. Whether you're interested in exploring new subjects or mastering key topics for your next exam, Course Hero has the tools you need to achieve your goals.

14 Pages

### 22MON09MAR

Course: PHYS 21022, Fall 2009
School: LSU
Rating:

Word Count: 845

#### Document Preview

2102 Jonathan Physics Dowling Lecture 22: MON 09 MAR Ch.29.12: Magnetic Fields Due to Currents Biot-Savart Law QuickTime and a decompressor are needed to see this picture. Jean-Baptiste Felix Savart Biot (1774- (17911841) What Are We Going to Learn? A Road Map Electric charge Electric force on other electric charges Electric field, and electric potential Moving electric charges : current Electronic...

Register Now

#### Unformatted Document Excerpt

Coursehero >> Louisiana >> LSU >> PHYS 21022

Course Hero has millions of student submitted documents similar to the one
below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.

Course Hero has millions of student submitted documents similar to the one below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.
2102 Jonathan Physics Dowling Lecture 22: MON 09 MAR Ch.29.12: Magnetic Fields Due to Currents Biot-Savart Law QuickTime and a decompressor are needed to see this picture. Jean-Baptiste Felix Savart Biot (1774- (17911841) What Are We Going to Learn? A Road Map Electric charge Electric force on other electric charges Electric field, and electric potential Moving electric charges : current Electronic circuit components: batteries, resistors, capacitors Electric currents Magnetic field Magnetic force on moving charges Time-varying magnetic field Electric Field More circuit components: inductors. Electromagnetic waves light waves Geometrical Optics (light rays). Physical optics (light waves) Electric Current: A Source of Magnetic Field Observation: an electric current creates a magnetic field Simple experiment: hold a current-carrying wireB near a compass needle! e ar . a re d an or ictu e ss p im pre his kT m e t uic eco se Q d to ed ed ne I B Wire with current INTO page B Hans Christian Oersted was a professor of science at Copenhagen University. In 1820 he arranged in his home a science demonstration to friends and students. He planned to demonstrate the heating of a wire by an electric current, and also to carry out demonstrations of magnetism, for which he provided a compass needle mounted on a wooden stand. While performing his electric demonstration, Oersted noted to his surprise that every time the electric current was switched on, the compass needle moved. He kept quiet and finished the demonstrations, but in the months that followed worked hard QuickTime and a decompressor are needed to see this picture. QuickTime and a decompressor are needed to see this pict Caseys Right Hand Rule! Point your thumb along the direction of the current in a straight wire The magnetic field created by the current consists of circular loops directed along your curled fingers. The magnetic field gets weaker with distance: For long wire its a 1/R Law! You can apply this to ANY straight wire (even a small differential element!) What if you have a curved wire? Break into small elements. i B Direction of B! i Superposition Magnetic fields (like electric fields) can be superimposed -- just do a vector sum of B from different sources The figure shows four wires located at the 4 corners of a square. They carry equal currents in directions indicated What is the direction of B at the center the of square? I-OUT I-OUT I-IN B I-IN Biot-Savart Law When we computed the electric field due to charges we used oulombs law. If one had a large irregular object, one broke i nto infinitesimal pieces and computed, Which we write as, r 1 dq dE = r 2 4 0 r If you wish to compute the magnetic field due to a current in a wire, you use the law of Biot and Savart. The Biot-Savart Law Jean-Baptiste Biot (1774-1862) Quantitative rule for computing the magnetic field from any electric current Choose a differential element of wire of length dL and carrying a current i The field dB from this element at a point located by the vector r is given by the Biot-Savart Law 0 =4x107 Tm/A (permeability constant) r dL r r dB i Felix Savart (1791-1841 r r r 0 idL r dB = 3 4 r Biot-Savart Law for B-Fields Coulomb Law for E-Fields r ) r m0 idL r dB = 2 4p r r dL r dE = 1 dq ) r 2 4pe0 r r r dB i Biot-Savart Requires A Right-Hand Rule ) BothrAre 1/r Laws! 2 Biot-Savart Law An infinitely long straight wire carries a current i. Determine the magnetic field generated at a point located at a perpendicular distance R from the wire. Choose an element ds as shown Biot-Savart Law: dB points INTO the page Integrate over all such r r r 0 ids r dB = 3 4 r 0 ids (r sin ) dB = 3 4 r m0i ds (r sin q ) B= 4p r3 Field of a Straight Wire r r r 0 ids r dB = 3 4 r sin = R / r 0 ids (r sin ) dB = 4 r3 r = ( s 2 + R 2 )1/ 2 m0i Rds m0i ...

Find millions of documents on Course Hero - Study Guides, Lecture Notes, Reference Materials, Practice Exams and more. Course Hero has millions of course specific materials providing students with the best way to expand their education.

Below is a small sample set of documents:

MN State - MC - 351
FRANK'S TANKSNever leave home without it.Equipment that you can depend on. Equipment that will stand the test of time and endure the worst conditions has always been one of Frank' primary goals. On sale this month is one of the finest backpacks o
Minnesota - EE - 5323
CMOS Inverter: Power Dissipation and SizingProfessor Chris H. KimUniversity of Minnesota Dept. of ECE chriskim@umn.eduCMOS Inverter Power DissipationWhere Does Power Go in CMOS? Switching power Charging capacitorsDynamic Power ConsumptionV
Minnesota - MATH - 8651
Math 8651: Theory of Probability Including Measure Theory: Fall 2004 Homework Assignment 1 (due on Wednesday, September 29, till 11:00 am) 50 points are distributed between 5 problems, 10 points each. 1. Using the binomial formula (a + b)n =n k=0 n
Minnesota - CH - 5021
# File ta02_011b.txt from publisher's web site# Data from Table 2.11b, p. 174 of IPS4# Col. 1: x = x for data set B# Col. 2: y = y for data set B x y 10 9.14 8 8.14 13 8.74 9 8.77 11 9.26 14 8.10 6 6.13 4 3.10 1
LSU - NR - 1072
Rotational Crossbreeding of Beef Cattle: Weaning Weight Per Cow Exposed and Cumulative Weaning Weight Per Cow in Breeding HerdD.E. Franke Department of Animal ScienceF# ###indings Rotational crossbred cows produced more calf weaning weight
Stevens - CS - 537
Computer GraphicsLecture 3 OpenGL as a rendering API Programming BasicsToday The pipeline More on libraries OpenGL Primitives: graphics and The state machine The pipeline GLUT Event driven programming. The callbacks. Managing windows
Stevens - CS - 537
Texture MappingTexture Mapping ReviewnnnMotivation: to model realistic objects need surface detail: wood grain, stone roughness, scratches that affect shininess, grass, wall paper. Use geometry, model surface detail with polygons; good for l
Pittsburgh - EXP - 309
.1[jii il'T1yiIi!II i;ONLINE DATABASESWeb 2.0: Our Cultural Downfall?By Carol TenopirANDREW KEEN, FORMER INTER- also unattributed blogs praising companet entrepreneur in Silicon Valley, has nies that really originate from the PR be
Minnesota - MATH - 1271
Math Cal 1271 Lec 040 Midterm II, Fall 2008Name: Discussion Section Number: 1 (10 points). Find an equation of the tangent line to the curve y = x2 + 2ex at (0, 2). Student ID:2 (10 points). If f (x) = x4 +2x + 1, find f (1).13 (40 points)
Stevens - CS - 496
~ diExb~rx|ps} c 9@&quot;F i i X Y X 9 m y @&quot; 9 i T 9 R d6Tz|{H#25Up6ConV&quot;Y &amp;2) gEdC#26T9 zy UxF w bi q v &quot; yv ' s v r ) r 7 q Y X 9 m &amp;uUEt7 &amp;x'wEt(rfUp6ConV&quot;Y q l 7 1 k v ) i T R D y &quot; &quot;F q u3#2e)j 25hg d#) iHfI e 7 1 4 1 )'% r q 86423'2
Stevens - CS - 434
b a PX V T R P G C E C A 1`YWUSQI H9FDB@8 43 0 ( 9765\$21)' % # &amp;\$ ! &quot; ! a PX V T R P G C E C A 1`YWUSQI H9FDB@ % 6 0 ozs&amp;B 4 Uj i s6 &amp;\$ # % # g % % # 4 oqz 4 &amp;\$ % oqz 4 \$% 6 % # % # 4 4 % % # &amp;\$ %
Stevens - CS - 559
1CS 559: Machine Learning Fundamentals and Applications 7th Set of NotesInstructor: Philippos Mordohai Webpage: www.cs.stevens.edu/~mordohai E-mail: Philippos.Mordohai@stevens.edu Office: Lieb 215Project (35% of grade) Topics: pick one BEFORE M
Pittsburgh - CS - 2210
Procedure Optimization (wrapup) &amp; Register AllocationCS2210Lecture 21CS2210 Compiler Design 2004/5Procedure Call OptimizationProcedure calls can be costlydirect call costs: call, return, argument &amp; result passing, stack frame maintenanc
Pittsburgh - CS - 1501
Cookbook for Assignment 1william cs.pitt.e @ duOutlinevie e Re w of Backtracking S arch m AnagramProble Analysis olving theAnagramProble Using m S Backtracking S arch e ple e s I m m ntation IssueC 1501-2007 S m r S um e2Re w of Backtra
Pittsburgh - CS - 401
Programming Assignment 5 Recursive GraphicsDue: 11:59pm April 4, 2004 Write a program that creates a fractal H-tree pattern (see the third page of this assignment for sample images). The H-tree pattern is an example of a fractal pattern. Fractal pat
Pittsburgh - SIS - 262
ARTICLE IN PRESSPhysica A 385 (2007) 363369 www.elsevier.com/locate/physaInterpersonal interactions and human dynamics in a large social networkAndrzej GrabowskiCentral Institute for Labour ProtectionNational Research Institute, 00-701 Warsaw,
Pittsburgh - EXP - 262
ARTICLE IN PRESSPhysica A 385 (2007) 363369 www.elsevier.com/locate/physaInterpersonal interactions and human dynamics in a large social networkAndrzej GrabowskiCentral Institute for Labour ProtectionNational Research Institute, 00-701 Warsaw,
Minnesota - ECON - 8602
1Bayesian Discrete Choice.1. Quick Review of Bayes2. Bayesian analysis of linear regression3. Bayesian MNP4. Target Marketing2Quick Review of Bayes. See Cameron and Trivedi for an overview of Bayes. In Bayesian econometrics, the econo
CSB-SJU - ECONOMICS - 364
Department of Economics College of Saint Benedict | Saint John's UniversityFall Semester 2008 Louis JohnstonEconomics 364 Assignment #6 Due Date: Friday, September 121. 2. Go to the course website, click on Assignments, and then download &quot;Readin
Pittsburgh - EXP - 2096
Computer Networks as Social Networks: Collaborative Work, Telework, a Virtual Community - Annual Review of Sociology, 22(1):213 - Abstract7/6/08 11:35 AMHello. Sign in to get personalized recommendations. New user? Register now.AbstractAnnual
Pittsburgh - EXP - 2122
The Foundations of Participatory Journalism and the Wikipedia ProjectAndrew Lih Journalism and Media Studies Centre University of Hong Kong alih@hku.hk Conference paper for the Association for Education in Journalism and Mass Communications Communic
CSB-SJU - CS - 130
CSB-SJU - CS - 130
Hungarian Notation A must in this course Every object used MUST be renamed including the form(s) using the following rulesForm frmFormName Textbox txtTextBoxName E.g. frmTemperature Also change captionLabel lblLabelName E.g.
CSB-SJU - CS - 130
CSCI-130 VB Programming - Searching DUE Thurs 2/26/09 ANYTIME BEFORE 11:59PMI. Create a new assignment folder on your M: drive with your full name such as MarySwansonHW3 II. Inside folder created in I, create another folder called Problem1 . Create
CSB-SJU - CSCI - 230
IntroductiontoCSCI230: SoftwareDevelopmentChapter1(JIA)SoftwareDevelopment ProcessRequirementscollection,analysisandspecificationFunctionalvs.nonfunctional Design Implementation&amp;UnitTesting IntegrationandsystemTesting Maintenance
CSB-SJU - CSCI - 230
Unified Modeling LanguageSequence Diagrams Chapter 2 (JIA)Identifying ClassesUML in VISIO Underline verbs and nouns in use cases AND requirements Nouns classes or attributes Verbs &amp; action nouns class methodsModeling Dynamic Behavior
CSB-SJU - CSCI - 310
Chapter6const int x = 5; int m ain(){ for(int k=0; k&lt;x; k+)cout &lt; k = &lt; k &lt; e ndl;re turn 0; }CONSIDERTHE4thPOWERofthebinomiala+b: (a+b)4=(a+b)(a+b)(a+b)(a+b). (a+b)4=a4+4a3b+6ab+4ab3+b4(a+b)5=?a5+?a4b+?ab+?ab+?ab4+?b5 (a+b)5=a5+5a4b+10a
Minnesota - ECON - 4171
Econ 4171: Lecture 5 Seventeenth century EnglandAdam Galambos 1171 Heller Hall, 625-0511, galambos@econ.umn.edu Office hours: Mo. 9:30-10:30 &amp; Th. 9:10-10:10, and by appt. class homepage: http:/www.econ.umn.edu/galambos February 3rd 2004The main po
Pittsburgh - CS - 1590
CS 1590 Writing Assignment # 2Due Beginning of Class, Tuesday, February 24, 2009 February 20, 2009InstructionsIntroductionThere are four prominant types of &quot;public&quot; databases which contain information on individuals: Credit History Tax Medical C
Minnesota - CHEM - 3502
Chem 3502/4502Physical Chemistry II (Quantum Mechanics) Spring Semester 2006 Christopher J. Cramer Lecture 6, January 30, 20063 CreditsSolved Homework We are given that A&quot; = a&quot; and A* &quot; = a&quot; where a is a real number. As both A&quot; and A* &quot; are equ
Vassar - CS - 335
Constructing The Class (Object Model*) DiagramThe Object Model Diagram is a graphical representation of the classes within a system and the static or underlying relationships between them.*original designationThe Class DiagramClass name Attrib
N.E. Illinois - MAT - 1160
Sec 3.2 Truth Tables and Equivalent StatementsConjunction: Given two statements p and q, their conjunction is p q.Conjunction Truth Tablepqp qT T F FT F T FT F F F 200509, N. Van Cleave1Conjunction Examples Determine the truth
N.E. Illinois - MAT - 1160
Sec 3.3 The Conditional &amp; CircuitsConditional statement: connective if . . . then. a compound statement that uses theConditional statements are also known as implications, and can be written as: pq (pronounced p implies q)The statement p is call
LSU - D - 45327
Specialty Nurseries and Plant Growers(last updated 4-17-08) Retail Location &amp; Online/Mail Order This list is an on-going, ever-changing list that will be regularly updated. The LSU AgCenter does not endorse any business nor guarantee products or ser
Fort Lewis - CSIS - 110
CSIS 110 - Lecture 29Quiz Results Possible: 25 Max: 24 Mean: 18.4 Median: 19.75 Distribution: &lt;15: 3 15-17: 5 17.5-19.5: 1 20-22: 3 22.5-24: 6 Programming Project The description is on the course web site. I don't have all the parts there yet (missi
Ohio State - STAT - 773
Statistics 773Winter 2005Nonparametric Density EstimationIntroductionWe are given a sample X1 , X2 , , Xn of n iid observations from a population with an unknown probability density f . The domain of f is X , and the estimator ^ of f is gen
Fort Lewis - CSIS - 310
CSIS 310 Lecture 35Read: Sections 9.4 and 9.5 Hash Tables Open Addressing with Quadratic Probing Last time we looked at hash tables with open addressing and linear probing. There is at least one problem with linear probing: it tends to create &quot;bunch
Fort Lewis - CSIS - 332
CSIS 332 Lecture 1Discuss Syllabus and plans for course. Introduction: Basic Browser/Web Server Interaction (See Slide1)QuickTime} and a TIFF (LZW) decompressor are needed to see this picture.HTTP (hypertext transfer protocol) - Discuss message
N.E. Illinois - CIS - 3340
This program exceeded the limit that my &quot;student&quot; PC compiler allows. I did test the program without any of the comments, heading lines and End-IF (used a period) and THEN in the IF statements. I have tried to replace these statements. I apologize fo
N.E. Illinois - UX - 5410
Tetrahedron Letters,Vol.29,No.47,pp Printed in Creat Britain6075-6078,1988oo40-4039/88 \$3.00 + .oo Pergamon Press plcASYMMETRICCOMPARISON OF ENOLATESYNTHESISVS.OF a-AMINOACIDS:CATIONFUNCTlONALlZATIONOF N-BOG5,6-DlPHENYL-2,3,5,6-
N.E. Illinois - UX - 5230
69VOLUME 11 (1998)SPORTS SCIENCE EXCHANGEIMMUNITY IN ATHLETES: CURRENT ISSUESDavid C. Nieman, DrPH, FACSM Department of Health and Exercise Science Appalachian State University, Boone, NC 28608NUMBER 2KEY POINTS1. The immune systems of athl
N.E. Illinois - UX - 2560
His 2560, Mid-Term 1, review. The Exam (2 October 2008) will have four parts. [Exam booklets (3) should have been submitted by 25 Sept. at the latest: in class, or place in my mail box 2744 Coleman; put name on each exam booklet and His 2560] Part 1.
N.E. Illinois - UX - 1400
Thunderstorms and TornadoesSETTING THE STAGE Atmospheric instability is essential in thunderstorm development. The majority of thunderstorms are non-severe multicell that consist of a series of cells or several coexisting cells. Convective instabili
N.E. Illinois - UX - 5230
Obesity &amp; Body CompositionPhysical ActivityPhysical ActivityLarger individuals burn more calories for the same activity 100 kcals/mile walking, running or swimming 50-80 kcals/mile for cyclingPhysical ActivityPhysical ActivityCDC Moderate-i
Fort Lewis - CSIS - 370
CSIS 370 - Lecture 18Reminders: Project: Test Plan due today. Acceptance Test Plan due in 3 weeks. In the meantime, you need to have your code complete enough to begin testing. Reading assignment Chapter 14 of the text. Review is due next Tuesday. E
N.E. Illinois - MAT - 2170
MAT 2170 Lab3 Gradesheet Lab 3: Arithmetic Expressions header comments Savings CircleArea DistanceSum SpiralCoords line commentsName: Score(20) correct printout submitted publishedPrelab Worksheet completed: Postlab Worksheet completed: Distance
Maryland - CMSC - 250
e r fe m n E ( 3 uC A f2B o fQ6fQ&quot;1( )v C E ( 1( n3 ' 0 B Bl e 0 ( 3 C g l A B # qs YT q4Y } sPU # Y} Y PUs# # r uqs Y uqs Yw1u Y ( h B l CQ E B ( r B ( B l PH 3 eC 3 xQ( 1( U B3 3 1(
Maryland - CMSC - 250
# \$ n# Gd~ &amp; 3 E i ( 3 qC v dj h B 22 k3 EC r e EC r } 3 l( 3 B Q h qG6 4 1&quot; 2 G\$Ds dE i ( B3 Do1D(1tm fe 2 2 dE i ( B3 fe r B BQC e 3 j 3 Q h % h B g C l( s C A E Cs s C CE 3 pC wee s 1l 4 v1&quot;m ( De m C SP DoC fe
Ohio State - ECE - 662
xlx wu q r x u lwuw wux 7%pu{H{y9iR8#{T%iVii{aiyHln p{T{`xhyyhy@HTp7y#S%0WprSdp{im%pu{H7f7hyW#p7h`rSi{#pSil a# l q o rx rx r w l q w rx u n w u x l r r o n n t u w r or orr l wux wx r x q r x o l xw wr ol
Ohio State - ECE - 763
C 2 A 1 ) r @ H At u A H l ' A @ 4 2 p(H6 7Du@ (7ux 8uS841 &amp;R6t sA1 E4C (08'2 D6EAt (41 d3422 P A2t 7u' i1 7C4R4x (C7D4H RCu G'A ViA1 C' dt 34R2d4 u }94()R%ut DC t G jg}w77R4IAhjuwP3'(Dx(7(8%BdR47S}3As68C!i7V(sxs(sv%hddDeg7hQD'd&amp;D'( 6 6 r C
LSU - C - 21765
Proposed Ranking Rules of Salt Effects on Rice ProductionRank Description Salts SAR Effects (ppm) 1 None &lt;500 &lt;4 No effect on yield 2 3 4 5 Mild Moderate Severe V. Severe 5001000 10002000 20006000 &gt;6000 &lt;5 Little to no effect on yields &lt;6 Some yield
Ohio State - STAT - 528
STAT 528. SOLUTIONS TO HW#88.6.] a) Let denote the sample proportion of female student athletes participating in gambling &amp; let denote the corresponding population proportion. =1447 3469= 0.4171.The standard error is = (1 - )/3469=0.008372
Maryville MO - AGRI - 2175
Monogastric Production Swine SectionInventory of Hogs and Pigs June 1, 2004Inventory of Hogs and Pigs June 1, 2004U.S. Breeding hogs Market hogs Total 5,913,000 54,196,000 60,082,000 Missouri 320,000 2,580,000 2,900,000Top Ten Hog States
Maryville MO - AGRI - 2175
Monogastric Production A.S. 2175Swine Section INTRODUCTIONIntroduction What do you think when you hear or see the word pig? Perhaps on occasion your mother indicated you were as dirty as a pig. Actually pigs are good housekeepers. Maybe you
Maryville MO - SF - 42000
Appendix B. Definitions of Subject CharacteristicsCONTENTS POPULATION CHARACTERISTICS Ability to Speak English (See Language Spoken at Home and Ability to Speak English) . . . . . . Adopted Son/Daughter (See Household Type and Relationship). . . . .
LSU - APPL - 003
Directors Advisory CouncilMay 31, 20011. SIRSI Unicorn Implementation a. Funding Update b. Technology Committee Role has Ended c. Letter of Intent sent to SIRSI on March 29 d. Site Visit to Indiana University on April 30 e. Sample Data Sent to SIR
Maryville MO - MATH - 1300
Math 1300 Learning Objectives and Written Homework List Spring 2009Section 3-1: Simple InterestText: pp 128-134 Learning Objectives 1. The student will be able to define the terms principal, interest, interest rate, simple interest, present value
Maryville MO - MATH - 1300
Math 1300 SP2008 Exam 2 March 19, 2008 6:30-7:30pm No work = No credit Name:_ Student Number:_Signature:_Instructor:__ Section:_Instructions: Answer all questions and show all of your work. Answers which are not justified with appropriate work
Maryville MO - MATH - 2300
Mathematica Tip Sheet- Built-In Constants: = Pi e=E i = -1 = I = Infinity Built-In Functions: Abs[x] Sqrt[x] Exp[x] Log[x] (= ln x) Log[b, x] (= logb (x) n! or Factorial[n] Grouping: Parentheses - ( ) Square Brackets - [ ] Curly Braces - { } Assi
Rutgers - CHEM - 128
Chem 128 Chemistry of Life Monday, Wednesday 3:55 5:15 PM Loree 022 Revised 02/16/09 Prof. Spencer Knapp 321 Wright Labs, Busch Campus e-mail: spencer.knapp@rutgers.edu, tel: 732-445-2627 Office hours: TBA in Loree DC (Learning Center, Room 124); T
Rutgers - CHEM - 209
Chem 209 Elementary Organic Chemistry - Fall 2004 Mon, Thurs 11:30 AM - 12:50 PM Hickman 101 DC Revised 9/8/04Dr. Shmuel Zbaida 133 Wright Labs BC e-mail: zbaida@rutchem.rutgers.edu; tel: 732-445-2618 Office hours: Thursday, 1:00-2:00 PM in Loree, D