Simulações Eletricas em Java

Indutores
http://www.magnet.fsu.edu/education/tutorials/java/backemf/index.html

Osciladores
http://www.magnet.fsu.edu/education/tutorials/java/oscillator/index.html

Tubos de Raios Catódicos
http://www.magnet.fsu.edu/education/tutorials/java/crt/index.html


Osciloscópio
http://www.magnet.fsu.edu/education/tutorials/java/lissajous/index.html

Capacitor
http://www.magnet.fsu.edu/education/tutorials/java/capacitor/index.html

e vários outros, bom demais.