PHYS_102x: Electricity & Magnetism

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10/10 stars
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FREE

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edX online courses
Harvard University, the Massachusetts Institute of Technology, and the University of California, Berkeley, are just some of the schools that you have at your fingertips with edX. Through massive open online courses (MOOCs) from the world's best universities, you can develop your knowledge in literature, math, history, food and nutrition, and more. These online classes are taught by highly-regarded experts in the field. If you take a class on computer science through Harvard, you may be tau...
Harvard University, the Massachusetts Institute of Technology, and the University of California, Berkeley, are just some of the schools that you have at your fingertips with edX. Through massive open online courses (MOOCs) from the world's best universities, you can develop your knowledge in literature, math, history, food and nutrition, and more. These online classes are taught by highly-regarded experts in the field. If you take a class on computer science through Harvard, you may be taught by David J. Malan, a senior lecturer on computer science at Harvard University for the School of Engineering and Applied Sciences. But there's not just one professor - you have access to the entire teaching staff, allowing you to receive feedback on assignments straight from the experts. Pursue a Verified Certificate to document your achievements and use your coursework for job and school applications, promotions, and more. EdX also works with top universities to conduct research, allowing them to learn more about learning. Using their findings, edX is able to provide students with the best and most effective courses, constantly enhancing the student experience.

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Sciences & Technology
Business & Management
22690 reviews

Course Description

*Note - This is an Archived course* This is a past/archived course. At this time, you can only explore this course in a self-paced fashion. Certain features of this course may not be active, but many people enjoy watching the videos and working with the materials. Make sure to check for reruns of this course. PHYS_102x serves as an introduction to electricity and magnetism, following the standard second semester college physics sequence. It begins with electric charge in matter, the forces between charges, the electric field, Gauss's Law, and the electric potential. Electric current and resistance are introduced, followed by descriptions of resistors, capacitors, and DC circuits.. The course then moves to the magnetic field, Ampere's Law, and Faraday's Law of Induction. Finally, inductors and AC circuits are described. PHYS_102x consists of ~2 hours of weekly video lectures, weekly online homework questions, a one page peer assessed ... *Note - This is an Archived course* This is a past/archived course. At this time, you can only explore this course in a self-paced fashion. Certain features of this course may not be active, but many people enjoy watching the videos and working with the materials. Make sure to check for reruns of this course. PHYS_102x serves as an introduction to electricity and magnetism, following the standard second semester college physics sequence. It begins with electric charge in matter, the forces between charges, the electric field, Gauss's Law, and the electric potential. Electric current and resistance are introduced, followed by descriptions of resistors, capacitors, and DC circuits.. The course then moves to the magnetic field, Ampere's Law, and Faraday's Law of Induction. Finally, inductors and AC circuits are described. PHYS_102x consists of ~2 hours of weekly video lectures, weekly online homework questions, a one page peer assessed design project, and two online exams. The course runs 12 weeks, but during the two exam weeks there will be no new topics or homework assignments. It is recommended that student work consistently every week and should expect to spend 10-12 hours per week on course content.   The following components will make up PHYS_102x. Video Lectures and Lecture Questions Homework Problems Midterm and Final Exams Online Discussion Forum PHYS_102x is targeted to an audience with a wide range of backgrounds and abilities from motivated high school students to people returning to their studies after a break. The prerequisites for this course are calculus and introductory mechanics.
Reviews 10/10 stars
14 Reviews for PHYS_102x: Electricity & Magnetism

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Rankings are based on a provider's overall CourseTalk score, which takes into account both average rating and number of ratings. Stars round to the nearest half.

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Nadav Bruchiel profile image
Nadav Bruchiel profile image
10/10 starsCompleted
  • 1 review
  • 1 completed
5 years, 3 months ago
Probably the best MOOC I took out of dozens! the material is insightful and well developed and the Prof. is clear, amusing and fascinating!
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Richard Kirkpatrick profile image
Richard Kirkpatrick profile image
9/10 starsCompleted
  • 6 reviews
  • 6 completed
5 years, 7 months ago
Everyone is probably familiar with MIT Professor Walter Lewin and his awesome lectures on Physics. After watching a few of Dr. Lewin's lectures, I was wondering how Dr. Hafner from RiceX would measure up. Bottom Line: Dr. Hafner exceeded my expectations. I took Physics II in college about 5 years ago so I wanted to re-learn the fundamentals of Electricity and Magnetism. I was very surprised on how much I was able to learn from Dr. Hafner. With Dr. Hafner, there was rarely a dull moment. He was very funny which kept the class interesting. For example, he taught the class in high heels for one segment; in another video, he demonstrated the applications of the Faraday cage by sticking his tongue towards an electric arc. But more importantly, he thoroughly explained the concepts, theory and application of Physics II. There were several topics such as conductors that included additional material that you typically do not receive in other ... Everyone is probably familiar with MIT Professor Walter Lewin and his awesome lectures on Physics. After watching a few of Dr. Lewin's lectures, I was wondering how Dr. Hafner from RiceX would measure up. Bottom Line: Dr. Hafner exceeded my expectations. I took Physics II in college about 5 years ago so I wanted to re-learn the fundamentals of Electricity and Magnetism. I was very surprised on how much I was able to learn from Dr. Hafner. With Dr. Hafner, there was rarely a dull moment. He was very funny which kept the class interesting. For example, he taught the class in high heels for one segment; in another video, he demonstrated the applications of the Faraday cage by sticking his tongue towards an electric arc. But more importantly, he thoroughly explained the concepts, theory and application of Physics II. There were several topics such as conductors that included additional material that you typically do not receive in other Physics courses. Dr. Hafner provided adequate lecture notes, examples, and resources for students to succeed in this course. In addition, Dr. Hafner did not make the class over challenging for those that are not very familiar or experts with Physics II. The online forums were very helpful. Dr. Hafner and his TA's were always providing help to students. Once student in particular, Grove, was a Community TA and helped numerous students when they had difficulty with the material. In my personal opinion, it is passionate students like Grove that really make free online learning an enjoyable experience. My only dislike for this course was that the online setting did not allow for partial credit on homework problems. For example, if you had the problem setup correctly but forgot a negative sign or misconverted on units, the problem was still marked incorrect. Fortunately, there was a balance of easy and difficult problems that usually cancelled this out. However, I would like to see the edX community address this issue in some way for classes such as Physics. One last thing about the course is that it is not as challenging as the Physics courses taught by MIT. While this was not a problem for me, if you are a genius or just absolutely love Physics, this course might not be challenging enough for you. However, I would still highly recommend this to all students.
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Hal Snyder profile image
Hal Snyder profile image
10/10 starsCompleted
  • 2 reviews
  • 2 completed
5 years, 7 months ago
My fourth go at E&M.; This is the first time I made it all the way through, thanks to Prof. Hafner's clear explanations and measured pace. Loved the historical anecdotes & guest appearance by Walter Lewin.
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Student

10/10 starsCompleted
5 years, 7 months ago
This was a great course taught by a great instructor. I 100% recommend it to anyone with an interest in learning about electricity and magnetism at a calculus-based university freshman level. The lectures are well done and they include some entertaining demos. (check out the high heels.......) (Dr. Hafner's intro video says that the course includes vector calculus which may be unfamiliar. Do not be concerned. The amount of vector calculus you actually need is quite manageable and he clearly explains what you need to know. The most difficult math I encountered were several problems that used some tricky integrals. Otherwise the math was not too bad.) The course covers the standard material: Charges, currents, electric fields, magnetic fields, induction, DC and AC circuits. Maxwell's equations are shown in their integral form. For me, the highlight of the course was the final week (which was not included in the final exam!) that derive... This was a great course taught by a great instructor. I 100% recommend it to anyone with an interest in learning about electricity and magnetism at a calculus-based university freshman level. The lectures are well done and they include some entertaining demos. (check out the high heels.......) (Dr. Hafner's intro video says that the course includes vector calculus which may be unfamiliar. Do not be concerned. The amount of vector calculus you actually need is quite manageable and he clearly explains what you need to know. The most difficult math I encountered were several problems that used some tricky integrals. Otherwise the math was not too bad.) The course covers the standard material: Charges, currents, electric fields, magnetic fields, induction, DC and AC circuits. Maxwell's equations are shown in their integral form. For me, the highlight of the course was the final week (which was not included in the final exam!) that derived the differential form of Maxwell's equations and the wave equations for the electric and magnetic fields using vector calculus. (And, yes, this section used some pretty advanced math, but again, it was not included in the final exam.). Dr. Hafner showed how Maxwell discovered that the electric and magnetic fields are waves and then calculated their propagation speed----(spoiler alert!)-------they travel at the speed of light. Thus he concluded that light was just a type of EM radiation. Very cool! Bottom line: If you're interested in this subject, take this course!
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student

10/10 starsCompleted
5 years, 7 months ago
This is a terrific class. Prof. Hafner does a great job in explaining the material in a rigorous and intuitive way. If you have the pre-requisites and put in the time and effort, this class will really expand your knowledge. I felt that the work I put into the class more than paid off.
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10/10 starsCompleted
5 years, 7 months ago
This was a really great course to follow. Jason Hafner really did his best here. I think I am addicted :-)
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student

10/10 starsCompleted
5 years, 7 months ago
A brilliant and challenging course. The course starts from basics and builds up on concepts from Electrostatics, Magnetism, Circuit elements, AC circuits and Waves too, etc., homework problems are good and the challenging ones require some thinking and make well use of materials covered in the lectures. Course is well paced, community is really active, and the discussion forums really add the social edge missing in MOOCs, plus they provide a lot more perspective to any problem, if one asks for it (Thanks Grove :) ). Lastly Professor Hafner gets the point and key concepts across really well, and classes are entertaining, and they keep you yearning for more. thanks to his really good sense of humor. Highly recommend this to anyone looking for a great physics course.
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Rafael V. Ribeiro profile image
Rafael V. Ribeiro profile image
10/10 starsCompleted
  • 8 reviews
  • 8 completed
5 years, 4 months ago
An overall awesome course. A very pleasing introduction to E&M, and easy enough for anyone who has taken Classical Mechanics (and basic Calculus) to follow (which is my case). The lectures go straight to the point, and the demos help us understand such points. Prof. Hafner is a wonderful and very dedicated instructor. Although the course doesn't delve too deep in some mathematical concepts, this is intentional, as it is targeted at a broad audience. But even if you have a stronger-than-average background, you won't be disappointed.
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10/10 starsCompleted
5 years, 7 months ago
I have to say Prof. Hafner is awesome. Enjoyed the course. I never had the opportunity to learn physics from a teacher who was so dedicated and loved his subject. this one certainly patched the hole. The course is worth the effort, even if you have taken Physics before. I took it for fun and it was worth it :)
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10/10 starsCompleted
5 years, 7 months ago
A great course (and funny too!) Course material is presented on a blackboard with some live demos. The homework problems aren't too hard (although there are some challenging problems too for more advanced students). In the 2014 iteration more material was added on circuit electronics, including AC electronics. This course is great preparation for a longer course such as Walter Lewin's 102x.
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10/10 starsCompleted
5 years, 7 months ago
This was a truly amazing course. Highly recommended to anyone with an interest in physics or electronics.
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10/10 starsCompleted
5 years, 7 months ago
Amazing course. Lectures were interesting from beginning till the end. A lot of explainations, 3d visualizations, experiments. Wonderful professor, who knows how to make students interested :)
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10/10 starsCompleted
5 years, 7 months ago
Fantastic course. And Professor Hafner sets the bar for edX best practices. There are plenty of discussion links on individual pages. Entities are referenced so you can refer to them. Short videos do not overwhelm time-wise: longer topics just have more videos (usually one "board" per video). Very well-organized. Good content. Good assignments. Personable instructor. What more could you want?
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Julio Pérez Flores profile image
Julio Pérez Flores profile image
10/10 starsCompleted
  • 1 review
  • 1 completed
5 years, 7 months ago
100% recommended course for those who want to learn more about these beautiful topics, with such a good teacher. So if you want to learn and have fun with a course, this is your course.
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