What exactly is the magnetic field? I know what it does, but I want to know what it's made of at microscopic level, and how it gets its shape. By comparison with the electrostatic field, which is created by electric charges that attract/repel one another, what creates the magnetic field? The movement of electrons in atoms? Or, are there some elementary particles that create this field? If yes, which particles?
Answer
Magnetic fields are caused by the electric fields. An magnetic field is an electric field that a particle in a certain reference frame that changed the effect. For example electrons moving in a wire produces a magnetic field as shown in this video. This video shows how magnetic fields are just electric fields in a different reference frame. Also, the electrons moving in an atom are magnets, but this video explains why only certain materials can be magnetized and why all magnetizable materials are not immediately magnets. This is due to magnetic domains.
No comments:
Post a Comment