학술논문

The Sponge Resistor Model - A Hydrodynamic Analog to Illustrate Ohm's Law, the Resistor Equation R = ρℓ/A, and Resistors in Series and Parallel.
Document Type
Article
Author
Source
Physics Teacher. May2014, Vol. 52 Issue 5, p270-275. 6p.
Subject
*OHM'S law
*HYDRODYNAMICS
*ELECTRIC resistors
*ELECTRICAL resistivity
*CIRCUIT elements
Language
ISSN
0031-921X
Abstract
The article offers information on the Sponge Resistor Model which consists of a hydrodynamic analog to illustrate Ohm's law, the resistor equation and resistors in series and parallel. It discusses an experiment illustrating Ohm's law which consist a sponge resistance element connected to the discharge tube. Information on cross-sectional area of a resistance element and resistivity of a resistance element is also presented.