Electric Potential and Electric Potential Energy

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Electric potential and electric potential energy are challenging topics that often lack sufficient physical explanations in some textbooks, leading to confusion among learners. The discussion highlights frustrations with the mathematical focus in the "Fundamentals of Physics" by HRW, suggesting that it may not fully clarify the concepts. Recommendations include exploring alternative resources, such as MIT's undergraduate physics videos, which provide a more comprehensive understanding of electricity and magnetism. These supplementary materials can enhance comprehension and address gaps left by traditional textbooks. Overall, seeking diverse educational resources can significantly aid in grasping these complex physics topics.
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I'm currently reading on my own on these topics for the first time in Fundamentals of Physics by HRW. Electric charge, electric fields, and Gauss' Law were 3 hard chapters, but manageable. In this chapter certain aspects aren't really clear to me at all, and there is more math than physical description (math isn't a problem, but there isn't enough of the latter to clarify the former), which is leaving me scratching my head and frustrated. Anyone know if these subjects are more fully fleshed out physically in another work or on a good website or video? I'm starting to see what others have said about Fundamentals cutting corners at times. Thanks.
 
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I know MIT has videos for physics at the undergraduate level that are really good. In particular, they have an entire class up about electricity and magnetism. The videos were a good supplement for me, to go with my class.

http://ocw.mit.edu/courses/physics/8-02-electricity-and-magnetism-spring-2002/index.htm
 
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So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
It may be shown from the equations of electromagnetism, by James Clerk Maxwell in the 1860’s, that the speed of light in the vacuum of free space is related to electric permittivity (ϵ) and magnetic permeability (μ) by the equation: c=1/√( μ ϵ ) . This value is a constant for the vacuum of free space and is independent of the motion of the observer. It was this fact, in part, that led Albert Einstein to Special Relativity.
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