Current produced by an AC slip-ring generator, DC split-ring generator, and smoothed DC split-ring generator (eg. with a capacitor).
<a href="//commons.wikimedia.org/wiki/User:%D0%94.%D0%98%D0%BB%D1%8C%D0%B8%D0%BD" title="User:Д.Ильин">Д.Ильин</a>: translation, optimization
<a href="//commons.wikimedia.org/wiki/File:AC_DC_gen_smoothed.svg" title="File:AC DC gen smoothed.svg">File:AC DC gen smoothed.svg</a> by <a href="//commons.wikimedia.org/wiki/User:Sjlegg" title="User:Sjlegg">Sjlegg</a>