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<h2 class="hd hd-2 unit-title">This Course on Open Learning Library</h2>
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<p>In this version of Electricity and Magnetism: Magnetic Fields and Forces on MIT Open Learning Library :</p>
<ul>
<li>No certificates can be earned on Open Learning Library</li>
<li>Runs as ‘self-paced’ and all dates mentioned within are irrelevant</li>
<li>Some assessment material may have been removed and grading adjusted accordingly</li>
<li>Any discussion forums have been removed</li>
<li>All assessments have been set to unlimited attempts</li>
<li>Some course content may have been removed</li>
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<h2 class="hd hd-2 unit-title">About Electromagnetism</h2>
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<h2>Welcome to 8.02.2x, Electromagnetism!</h2><h3>Pre-Requisites</h3><p>To take 8.02, you must have a background in mechanics and multivariable calculus. This is the second part of the Electromagnetism sequence, so to take this course you should have some familiarity with the topics in the first part:</p><p>Electrostatics: Charges, Electric Fields, Electrical Potential, Conductors, and Dielectrics.</p><h3>Content</h3><p>This course is an introduction to electromagnetic fields and forces. Electromagnetic forces quite literally dominate our everyday experience. The material object presenting this text does not fall through the floor to the center of the earth because it is floating on (and held together by) electrostatic force fields. However, we are unaware of this in a visceral way, in large part because electromagnetic forces are so enormously strong, [mathjaxinline]10^{40}[/mathjaxinline] times stronger than gravity.</p><p>Because of the strength of electromagnetic forces, any small imbalance in net electric charge gives rise to enormous forces that act to try to erase that imbalance. Thus in our everyday experience, matter is by and large electrically neutral, and our direct experience with electromagnetic phenomena is disguised by many subtleties associated with that neutrality. This is very unlike our direct experience with gravitational forces, which is straightforward and unambiguous.</p><p>The objectives of this course are to tease out the laws of electromagnetism from our everyday experience by specific examples of how electromagnetic phenomena manifest themselves. We want to be able: (1) to describe, in words, the ways in which various concepts in electromagnetism come into play in particular situations; (2) to represent these electromagnetic phenomena and fields mathematically in those situations; (3) and to predict outcomes in other similar situations. The overall goal is to use the scientific method to come to understand the enormous variety of electromagnetic phenomena in terms of a few relatively simple laws.</p><h3>Why Is Understanding Electricity & Magnetism Important?</h3><p>It is essential to our understanding the world around us. The most fundamental processes in nature, from the forces that determine the structure of atoms and molecules to the phenomena of light to nerve impulses in living systems, depend on electric and magnetic fields.</p><p>It is fundamental to current and future technologies. Motors, power generation and transmission, electronics, sensors, and communication – both wired and wireless – involve the manipulation of electric or magnetic fields. There are few advances in technology that can be made without the use of electronic circuits or electric and magnetic fields.</p><p>It is the simplest example of unification in science. A large and diverse body of observational facts can be explained in terms of a few simple concepts. The phenomena of electricity and magnetism, which appear to be completely different, are shown to be two manifestations of the same physics. The theory requires few if any approximations. Results can be predicted with great accuracy.</p><p>It represents the most quantitative mode of inquiry of all the sciences. Of the various ways to approach science, physics in general, and E&M in particular, starts with the smallest set of fundamental assumptions. Quantitative rigor in solving important problems is rewarded by unprecedented agreement with measured results. Chemistry and biology demonstrate different, complementary approaches to dealing with natural phenomena.</p><p><font SIZE="-1">With thanks to Tom Greytak & Marc Kastner.</font></p>
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<h2 class="hd hd-2 unit-title">Release and Due Dates</h2>
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The following table gives very good estimates of when content will be released, in addition to due dates for lecture exercises and for homework. Any adjustments for this schedule will be made here, and will be announced on the course updates page. <b> All listed times in this course are in UTC</b> </p><p><b>Please pay attention to the due dates. Individual extensions cannot be granted under any circumstances.</b></p><table border="1" cellspacing="0" cellpadding="0" align="left" width="754"><tr><td width="13%" valign="top"/><td width="24%" valign="top"><p align="center"><strong>Release Date</strong></p></td><td width="22%" valign="top"><p align="center"><strong>Topics</strong><strong/></p></td><td width="24%" valign="top"><p align="center"><strong> Lesson exercises and HW due date</strong></p></td></tr><tr><td width="13%" valign="top"><p align="center"><strong>Week 6</strong><strong/></p></td><td width="24%" valign="top"><p align="center">Wed May 1 </p></td><td width="22%" valign="top"><p>Week 6: Current, Resistance, and DC Circuits</p></td><td width="24%" valign="top"><p align="center">Wed May 15 @23:59 UTC</p></td></tr><tr><td width="13%" valign="top"><p align="center"><strong>Week 7</strong><strong/></p></td><td width="24%" valign="top"><p align="center">Wed May 8</p></td><td width="22%" valign="top"><p>Week 7: Lorentz's Law and Biot-Savart</p></td><td width="24%" valign="top"><p align="center">Wed May 22 @23:59 UTC</p></td></tr><tr><td width="13%" valign="top"><p align="center"><strong>Week 8</strong><strong/></p></td><td width="24%" valign="top"><p align="center">Wed May 15</p></td><td width="22%" valign="top"><p>Week 8: Magnetic Dipoles</p></td><td width="24%" valign="top"><p align="center">Wed May 29 @23:59 UTC</p></td></tr><tr><td width="13%" valign="top"><p align="center"><strong>Week 9</strong><strong/></p></td><td width="24%" valign="top"><p align="center">Wed May 22 </p></td><td width="22%" valign="top"><p>Week 9: Ampere's Law</p></td><td width="24%" valign="top"><p align="center">Wed Jun 5 @23:59 UTC</p></td></tr><tr><td width="13%" valign="top"><p align="center"><strong>Exam</strong><strong/></p></td><td width="24%" valign="top"><p align="center">Wed May 29 </p></td><td width="22%" valign="top"><p>Timed Exam</p></td><td width="24%" valign="top"><p align="center">Wed Jun 12 @23:59 UTC</p></td></tr></table>
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<h2 class="hd hd-2 unit-title">Grading and Certificates</h2>
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<h2>Certificates</h2>
<p>You will need to score 60% or more to pass - no certificates are issued on MIT Open Learning Library</p>
<h2>Grades</h2>
<p>The weighting of each piece of assessment is given in the table below.</p>
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<tbody>
<tr><th colspan="2" style="text-align: center;">Weighting scheme</th></tr>
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<td><strong>Component</strong></td>
<td><strong>Weight</strong></td>
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<td>Exercises</td>
<td>100%</td>
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