Abstract

In this paper we shall consider the circumstances under which the concept of ‘field’ was introduced into electrical theory, the traditional use of the notion of field with particular reference to electrical theory, and sketch three characters of a field in this context. These are its pervasiveness, its independent existence, and its status as an elastic body. In each case we will briefly bring to bear more modern comment on these three facets of the traditional conception, attempting to salvage the meaning for the term field that is currently accepted. Following this, ‘field intensity’ will be compared with other terms such as ‘displacement current’ and the fictional character of terms and the conventional character of the equations in which ‘field intensity’ appears will be discussed. The paper closes with a summary of the points made.