View Single Post
berkeman
berkeman is offline
#11
Apr16-07, 05:05 PM
Mentor
berkeman's Avatar
P: 39,589
Try wikipedia.org -- that's a reasonable starting point for introductdory subjects. Google is another source, but you need to add extra qualification words to your search there in order to narrow the results.

What does wikipedia say about an alpha particle? What is its net charge? What does that tell you about the "current" from a stream of alpha particles?