We have to go a little bit farther to think about the derivatives. You've done some of it with Gauss's law and vector flux. We have to think about a field, so if we're going to do the wave equation for a field, we need to have derivatives of the field, and how to deal with integrals and derivatives in calculus with a field. We have to think about something more complicated than a string. What we want to do is waves of the electromagnetic field. We now have a feel for a wave on a string, or we just have a one-dimensional string and we think about its displacement versus time. It will thoroughly prepare learners for their upcoming introductory physics courses, or more advanced courses in physics. This comprehensive course series is similar in detail and rigor to what is taught on-campus. Once the modules are completed, the course ends with an exam. Each module contains reading links to a free textbook, complete video lectures, conceptual quizzes, and a set of homework problems. The course follows the typical progression of topics of a first-semester university physics course: charges, electric forces, electric fields potential, magnetic fields, currents, magnetic moments, electromagnetic induction, and circuits. They will gain experience in solving physics problems with tools such as graphical analysis, algebra, vector analysis, and calculus. Upon completion, learners will have an understanding of how the forces between electric charges are described by fields, and how these fields are related to electrical circuits. This course serves as an introduction to the physics of electricity and magnetism.
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