How to specify an electric alternator....

[berkeman]

Thread has been cleaned up a bit, and the OP is on a short vacation from the PF (not because of the PMM thread, but for something that was cleaned up in this thread).

@Rakesh bhatoa -- Perpetual Motion Machine discussions are not allowed here. Thread will remain closed. From the PF Forbidden Topics lise:

Pseudoscience, such as (but not limited to):

Perpetual motion and "free energy" discussions
http://wiki.4hv.org/index.php/Free_Energy_Debunking
http://en.wikipedia.org/wiki/Perpetual_motion
http://www.skepdic.com/freeenergy.html
http://www.skepdic.com/perpetual.html