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Physics 196: Electricity and Magnetism San Diego Mesa College - Summer 2015 Instructor: Jae Calanog, PhD Office: MS115P email: [email protected] Office Hours: W 1:00-3:00 PM Lecture Hours: TTh 12:30-4:30 PM (MS101) Required Textbook: None Mailbox: K108B Lab Hours: TTh: 8:30-11:30 AM (MS106) Optional Textbook: Fundamentals of Physics, Vol. 2, Halliday, Resnick, Walker 10th Edition ISBN: 978-1118230732 Prerequisites: PHYS 195 and MATH 151 with a grade of C or better, or equivalent. Course Description: This is the second of a three-semester calculus-based general physics sequence, intended to satisfy the transfer requirements of students planning to major in the physical sciences and in engineering. The topics of study include the basic principles and applications of electrostatics, magnetostatics, time-varying electric and magnetic phenomena, direct and alternating current circuits, elementary electronics and electromagnetic waves. Emphasis is placed on the mathematical analysis of physical problems. Laboratory work on various aspects of electric and magnetic phenomena emphasizing direct current (DC) and alternating current (AC) circuits is included. Course Objectives: Upon completion of this course, students will be introduced to physics concepts and are expected to develop problem solving skills in electromagnetism. Course Content: Coulomb’s law, electric field, Gauss’ law, electric potential, capacitance, Ohms law, DC circuits, Kirchhoff rules, magnetic force on moving charges and current wires, BiotSavart’s law, Ampere’s law, magnetic properties of materials, Faraday’s law, Lenz’s law, inductance, AC circuits, Maxwell equations, electromagnetic waves. Student Learning Outcomes: 1. Critical Thinking: Students will display the ability to use proportional reasoning and graphical analysis to establish and analyze relationships between measured quantities. 2. Communication: Students will display the ability to clearly communicate scientific principles, experimental results, and their implications. 3. Problem Solving: Students will display the ability to apply conceptual and mathematical tools to correctly predict the future state of physical systems. Student Learning Objectives: 1. Examine the nature of electrostatic phenomena and calculate the forces between electric charges. 1 2. Calculate the electric field and electric potential at field points due to various distributions of charge. 3. Describe the phenomenon of capacitance and the effects of dielectrics. 4. Explain the relationship between current and resistance and apply these concepts in the analysis of direct current circuits. 5. Explain the nature and sources of magnetic fields and how to calculate them from simple current distributions. 6. Describe the phenomenon of magnetic induction and employ its mathematical expression in the solution of problems involving inductance. 7. Analyze alternating current circuits with combinations of resistive and reactive components, and express the phase relationships between the voltages and currents in these circuits. 8. Describe the nature of electromagnetic radiation; explain its generation and propagation. 9. Demonstrate essential laboratory skills, such as the ability to construct circuits from circuit schematics and the ability to use basic electrical instruments and computers. 10. Compose laboratory reports that are the result of the collection, organization and analysis of laboratory data for the purpose of evaluating the validity of physical theories. 11. Apply appropriate quantitative techniques from algebra, geometry, trigonometry and calculus as necessary in the understanding of physical principles and solution of physical problems. 12. Analyze the results of problems solved and assess the real-world applications. Attendance: Adding/Dropping: It is the student’s responsibility to add, drop, or withdraw from classes before the deadlines stated in the class schedule. Petitions to add, drop, or withdraw after the deadline will not be approved without proof of circumstances beyond the student’s control which made him/her unable to meet the deadline. Lack of money to pay fees is not considered an extenuating circumstance. Students anticipating difficulty in paying fees before the add deadline should check with the Financial Aid Office about sources of funds or other alternatives for which they may be eligible. If you decide to withdraw from this course, you are reminded to do so before the 6th the week of instruction (with a “W”). If you fail to withdraw by that date and you stop coming to class, a final grade must be assigned to you. Policy: Attendance is taken every class, in both lecture and lab sections. Any student who fail to attend the first day of class will be dropped from the class. A maximum of 3 absences are allowed for the class and any student who exceed this amount will be dropped. Note that being absent for lab and lecture counts as 2 absences. This is in compliance with the Mesa College policy on attendance. If students miss class, please make arrangements with a classmate to keep you informed on lecture topics, lab or studio exercises, handouts and assignments. This information is an integral part of the instruction and may not be found in the reference texts. 2 Tardiness: The class begins at the listed time on the catalog. A ten-minute break will be taken approximately for each hour of class. Since the classroom is considered a professional setting, tardiness is unacceptable. In addition, it is also disruptive to both the instructor and the students. Students who arrive more than 10 minutes late to class or who leave in between the break-period will be considered absent for the day. Classroom Behavior and Student Code of Conduct: Students are expected to respect standards of student conduct while in class and on the campus. Refer to Policy 3100, Procedures 3100.1 and 3100.2, current college catalog and student handbook for guidance. In particular, any form of cheating and plagiarism will not be tolerated and can result to an “F” letter grade for the assignment, project, or exam for all those who are involved. Also, all violations of standard academic honesty will be reported to the school dean for appropriate action. Accommodations for Disability: Students with disabilities who may need academic accommodations should discuss options with the professor during the first two weeks of class. Lab Sections: I will start each lab section by just briefly describing the equipment, which includes concerns or tips in regards to its use. Therefore, all students are expected to have read the necessary background information and instructions prior to starting the lab assignment. In addition, students who arrive more than ten minutes late to the lab section without prior notice will not be allowed to participate and will receive a zero for the experiment. Disruptive or dangerous behavior is not tolerated and will result in the removal of the student from the session and the course. No food and drink are allowed in the labs. Closed-toed shoes are required and any student who do not comply will not be allowed to participate for that day’s lab activity. Evaluation: The following lists the weights for the different course components and their descriptions. • Exam (45%): There are four exams for this course, with the dates listed on the schedule. Exams will cover recent course material throughout the semester. The lowest exam score will be dropped and the three best will count toward the final grade. All exams are closed-book but students can produce a “cheat sheet” on one side of an 8.5′′ × 11′′ sheet of paper. No make-up exams are given, under any circumstance. • Final Exam: (15%) The final exam is cumulative, which will include multiple-choice conceptual and calculation-based questions. Students can use a “cheat sheet” on both sides of an 8.5′′ × 11′′ sheet of paper. Exemption from the final exam is possible if and only if a student obtains a curved score of 90% or higher in the previous four exams. • Lab Reports (15%): Students will perform laboratory experiments with groups of 3-4 students, depending on the number of setups available. Each group is responsible for picking their own groups and one lab report is required for submission for each group. The pdf files for each experiment will be available on Blackboard. Completed lab reports are due the next lab (or an exam) session, within ten minutes after starting. No late work is ever accepted and no make-up sessions 3 are offered under any circumstance. The lowest lab report will be dropped from your final grade. The grading rubric for the lab reports are roughly as follows: 50% for Thoroughness – All prompts answered completely – All calculations clearly displayed – All plots properly prepared 30% for Experimental Accuracy (may vary depending on the lab) – < 5% error is excellent – 6 − 10% error is acceptable – 11 − 15% error is tolerable – 16 − 20%is substandard – > 20% is unacceptably large 20% for Legibility – Proper grammar is used – Proper spelling is used – Work is clear and easy to read • Take-Home Quizzes (20%): Take-home quizzes (THQ’s) are given about every week and composed of both conceptual and calculation-based questions. They are typically due one-week after they are assigned. These are to be submitted in-class within ten minutes after lecture starts or in my mailbox if to be submitted earlier than the due-date. Absolutely NO late work is accepted, under any circumstance. All take-home quizzes MUST have the following format: – Last name, first name on the upper right-hand corner. – At the beginning of each calculation-based problem, paraphrase the question. – Present answers only on one side of the paper. The tutoring center has paper with one blank side available. – Write answers in scientific notation in cases of leading zero’s or when answers have five or more digits. – Write answers with the appropriate number of significant figures. – Write legibly. Illegible work cannot not be graded. – For answers involving multiple-line calculations, each step must reflect and a coherent train of thought to the reader. – Box all final answers and must include the proper units. – Assemble the solutions in sequential order and staple them together on the upper left corner. 4 For each THQ, one conceptual and calculation-based problem will be graded, chosen at random. The solutions for all the problems in the THQ will be posted within 1-3 days after the due date. FAILURE TO FOLLOW THIS SPECIFIC FORMAT WILL RESULT IN A 0.5 POINT DEDUCTION FOR EACH RULE BROKEN. • In-Class Quizzes (5%): In-Class Quizzes (ICQ’s) are 15-20 minute one or two question announced quizzes that are taken during class. They are designed to assess understanding of current material, identify areas of weakness, and simulate an exam-like environment. Grading Scale: 90 − 100% = A, 80 − 89% = B, 70 − 79% = C, 60 − 69% = D, > 60% = F Important Dates: Last Day to Drop with a Refund, without a “W”: June 15, 2015 Last day to Withdraw: July 10, 2015 Contacting Me: I check email regularly throughout the workweek until 9 PM. Therefore, please plan accordingly when sending me an email. My office hours are listed above and these are the times that I will be available on campus outside of the classroom. Please be respectful of this time slot and do not expect to be accomodated outside of this time. 5 Physics 196 Summer 2015 Tentative Schedule Lecture/Date 1 (6/9) 2 (6/11) 3 (6/16) 4 (6/18) 5 (6/23) 6 (6/25) 7 (6/30) 8 (7/02) 9 (7/07) 10 (7/09) 11 (7/14) 12 (7/16) 13 (7/21) 14 (7/23) 15 (7/28) 16 (7/30) Topic Charge, Force & Field Charge Distributions & Electric Field Flux, Field & Electric Potential Electric Potential, continued Charge & Capacitance Electrodynamics & Ohm’s Law DC Circuits RC Circuits Magnetic Fields Currents & Magnetic Fields Fields & Currents, continued Induction & Lenz’s Law EM Oscillations, AC Circuits AC Circuits, Resonance Maxwell’s Equations, EM Waves all 6 Lab Vectors Supplemental Lecture · flux Electrostatics Equipotentials Exam 1 Capacitance Simple Circuits Exam 2 Magnetic Fields q/m of Electron Magnetic Forces Exam 3 Induction AC Circuits Exam 4 Final Exam