Title

The Hydraulic Analogy for Electric Current

Document Type

Article

Publication Date

2003

Abstract

About 1900 the British scientist Sir Oliver Lodge (1851–1940) described a hydraulic analogue for electrical circuits that was widely used in the first half of the century and is still with us. Although some physics teachers object to the use of analogy in their presentations, the hydraulic analogue has become firmly fixed in our consciousness, and it is interesting to see how some older textbooks used it. The mechanical model of the emf is a bit strained, but the other models are easy to accept as analogues.

Journal

The Physics Teacher

Volume

71

First Page

464

Last Page

466