ABSTRACT
Chapter 1 provides a brief introduction to magnetism and magnetic field. A magnetic field is produced whenever there are electric charges in motion, which represent electric current, I, measured in amperes (A). A magnetic field can also be produced by other magnetic sources (permanent magnets, magnetic dipoles, etc.) but these are primarily also always generated by the macroscopic motion of electric charges or fundamental subatomic properties such as spin magnetic moment and orbital magnetic moment. Other magnetic phenomena discussed in this introductory chapter include ferromagnetism, ferrimagnetism, antiferromagnetism, superparamagnetism and helimagnetism.
