We introduced the magnetic field today. The strength and direction of a magnetic field is represented by the letter B. The source of all magnetic fields is moving electric charge (and, as we will see later, changing electric fields).
The relationship between the directions of electric currents and the directions of the magnetic fields they produce is described by the Right Hand Rule (RHR) that we introduced today. We also listed six ferromagnetic elements. There are also many ferromagnetic compounds, many containing rare earth elements like neodymium and samarium. Interesting stuff. Assignment:
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Physics IIMr. Swackhamer Archives
May 2019
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