Welcome to the wonderland of plasma physics where there is simple input processes but everything couples and becomes wildly non linear... Here the building blo

Welcome to the wonderland of plasma physics where there is simple input processes but everything couples and becomes wildly non linear... Here the building blocks are: 1.) moving charges and 2.) magnetic fields. As you correctly say moving charges produce magnetic fields(1). But magnetic field fields deflect charged particles via the Lorentz Force [2]. This results in what is known as the frozen-in-condition that says that magnetic flux and the (highly conductive) plasma can only move together. [3] Now, if the two things can only move together, which one gets to decide where to go? That depends on a parameter known as "plasma beta" [4]. Basically it is the ratio between thermal pressure (of the particles) and magnetic pressure due to the field. In low beta plasma, the pressure of the magnetic field wins and the plasma is just along for the ride. This is the case in the solar corona and solar wind. In high beta plasma the plasma flows as it wishes (e.g. due to pressure gradients) and the magnetic field gets dragged along. This is the case e.g. inside the sun and the reason why the solar dynamo can work and produce magnetic fields. (1) actually moving charges carry a current which causes a temporal change in electric field via Ampere's Law, the curl of which produces a magnetic field via Faraday's Law. [1] [1] https://en.wikipedia.org/wiki/Maxwell%27s_equations#Formulation_in_SI_units_convention [2] https://en.wikipedia.org/wiki/Lorentz_force [3] https://en.wikipedia.org/wiki/Alfv%C3%A9n%27s_theorem [4] https://en.wikipedia.org/wiki/Beta_(plasma_physics)