Suggests a first-order experiment that can be used to establish the Lorentz transformation without considering the constancy of light velocity or the full set of Maxwell's equations. Involves the use of a long solenoid to create an electric field in a moving magnetic field. (LC)

Contends that the equations of electromagnetism, whether in rationalized or non-rationalized form, express an invariant set of physical relationships. The relationships among corresponding symbols are given and applied to precise statements about the relation between the oersted and the amphere per meter, the abampere and the ampere, etc.…

Considers health hazards that may be associated with the electromagnetic effects produced by high voltage electric transmission lines. (GS)

Presents a demonstration designed to illustrate Faraday's, Ampere's, and Lenz's laws and to reinforce the concepts through the analysis of a two-loop magnetic circuit. Can be made dramatic and challenging for sophisticated students but is suitable for an introductory course in electricity and magnetism. (JRH)

This monograph was written for the conference on the New Instructional Materials in Physics, held at the University of Washington in summer, 1965. The approach is phenomenological and microscopic, and is intended for college students who are not preparing to become professional physicists. The monograph has three sections. Section I includes a…

Purpose is to show the ingenuity of Maxwell in the use of models and their significance to the developing theory of electromagnetic radiation. Five original papers are reviewed. (Author/TS)

Examines elementary science methods textbooks to determine how magnet concepts are presented. Focuses on the organization, sequence of concepts, and potential misconceptions, and includes types of investigations. Analyzed 11 elementary science methods textbooks in detail and found great variation in the magnet concepts presented, general omission…

This monograph was written for the Conference on the New Instructional Materials in Physics, held at the University of Washington in summer, 1965. It is intended for use by college students who are non-physics majors. The approach is phenomenological and macroscopic. The monograph contains three chapters. Chapter 1 discusses Faraday's experiments…

Derives the magnetic field as a function of position between two capacitor plates during discharge with the use of the integral form of Ampere's law and real currents only. The displacement current must be included to obtain the same result for arbitrary choices of contours. (Author/GA)