Abstract

LIMA, E.F. de; FOSCHINI, M.  and  MAGINI, M.. O efeito termoiônico: uma nova proposta experimental . Rev. Bras. Ensino Fís. [online]. 2001, vol.23, n.4, pp. 391-394. ISSN 1806-1117.  http://dx.doi.org/10.1590/S0102-47442001000400005.

The thermoionic effect plays an important role in development of science and understanding of matter properties. In this present an experiment was performed to study this effect using a simple car lamp with two laments. From this experiment we determined the Richardson - Dushman equation, Child's Law and measured rectification properties. From these results we conclude through this simple experiment was possible to study the thermoionic effect in its entirety.