Magnetism and Electromagnetism

[minhty96]

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 :)

 

[Simon Bridge]

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?

 

[minhty96]

At an beginner level approximately. I'm quite unsure how solenoids operate too !

 

[Simon Bridge]

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?

 

[sardar]

Magnetism and electromagnetism are fundamental forces of nature that govern the behavior of objects and particles. Magnetism is the force that attracts or repels objects made of certain materials, such as iron or nickel. This force is caused by the alignment of tiny magnetic fields within these materials.

Electromagnetism, on the other hand, is the interaction between electricity and magnetism. It is a force that can be created when an electric current flows through a wire, producing a magnetic field. This magnetic field can then interact with other magnetic fields, creating movement or force.

The fundamentals of how and why these things operate lie in the properties of electrons, which are negatively charged particles that surround the nucleus of an atom. When electrons move, they create an electric current, and this movement also generates a magnetic field. In materials with aligned magnetic fields, the movement of electrons can cause these fields to influence each other, resulting in the force of magnetism.

The interaction between electricity and magnetism is also fundamental to many modern technologies, such as generators, motors, and even the functioning of our electronic devices. Understanding the principles of magnetism and electromagnetism is crucial in many fields of science and engineering.