In order that electric current may flow from point to point along a conductor, there is a difference of potential from point to point in the conductor. This might be compared with the flow of water in a pipe or to the flow of heat in a substance. ... HEATING EFFECT OF CURRENT. ... where k is a constant of proportionality, and the numerical value depends upon the particular units in which H is to be expressed.
|Title||:||Technical manual (United States. War Dept.)|