Magnetism and Electromagnetism

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Discussion Overview

The discussion revolves around the fundamentals of magnetism and electromagnetism, focusing on the underlying principles and mechanisms. Participants explore the basic concepts and seek clarification on specific topics, such as the operation of solenoids.

Discussion Character

  • Exploratory, Conceptual clarification, Homework-related

Main Points Raised

  • One participant expresses a desire for a fundamental understanding of how magnetism and electromagnetism operate.
  • Another participant notes that the relationship between magnetism and electromagnetism is complex and fundamentally linked to the interaction of photons with charged matter, referencing quantum electrodynamics (QED) as a framework.
  • A participant mentions that it typically takes several years of study to grasp the fundamentals of electromagnetism, indicating the complexity of the subject.
  • There is a suggestion that specific questions about concepts like solenoids can be addressed, with a basic explanation that activating a solenoid creates a magnetic field.
  • A question is raised about the shape of the magnetic field around a wire, indicating a need for further exploration of related concepts.

Areas of Agreement / Disagreement

Participants generally agree on the complexity of the subject and the need for a foundational understanding, but there is no consensus on the specifics of how to convey this understanding or on the details of concepts like solenoids.

Contextual Notes

Participants acknowledge the limitations of providing a comprehensive explanation in a forum format, emphasizing the depth of study required to fully understand electromagnetism.

Who May Find This Useful

Individuals seeking a basic understanding of magnetism and electromagnetism, particularly those new to the concepts or looking for clarification on specific topics like solenoids.

minhty96
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In basic but precise terms, can someone please explain to me the fundamentals on how/why these things operate?

I've been reading about how these things work but I really want a good understanding on why these works too.

Thanks :)
 
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Welcome to PF;
We don't know why they work the way they do - they just do.

Some notes:
magnetism and electromagnetism are fundamentally the same thing.
fundamentally they work by the interaction of photons with charged matter - photons may be emmitted, absorbed, or exchanged. But that's quantum mechanics (specifically QED) and really brief and incomplete. It is impossible to get basic and precise - you know whole text-books get written on this thing? What level did you want this at?
 
At an beginner level approximately. I'm quite unsure how solenoids operate too !
 
At the start of E-mag (electromagnetism courses) you should be concentrating on getting the mathematica relations down.

You should realize that it typically takes two years of secondary school and four of college before students get the fundamentals of E-mag down if at all. I don't think you intend anyone to write all that down right here.

We can help with specific questions ... eg. what is it about the operation of a solenoid you don't understand? At the really basic level, you switch on the power and you get a magnet.
Do you know the shape of the magnetic field around a wire?
 

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