Some Important Concepts And Problems. Electromagnetics Research

It was found that physical instruction still had many kinds of problems though it had made a great progress, after we made an extensive and intensive research on the intruction of electromagnetics theory. Also, a large number of students felt that physics was too abstract and difficult to study. In order to pay more attention to that and find some measures to deal with such problems, we have made prepared to thrash out some important conceptions and some ambiguities in electromagnetics, and hoped that this study can become a kind of necessary complementarity and expanse for the curriculum teaching of electromagnetics.We started with easy points and proceeded with mounting difficulty, and have focused on the concernful concept-field, then respectively discussed and analysed the interplay among charges and currents, the unification between electric field and magnetic field, the distribution of electromagnetism, and the corporality of electromagnetic field, and so on. we also have made some ambiguous questions clear.This study not only provides the referenced value on the instruction of electromagnetics theory, but also helps students to comprehend and master the knowledge of electromagnetism, and accelerates the progress into profundity and precision in electromagnetics theory.