# Help building electric generator?

I am in the process of building an electric generator for the first time, and I have found out most of what I need to do, except the following things.

1. Can I have 2 rows of magnets linked together side by side spinning around the stator?

a. If possible does this change the recommended size of the inner diameter of my coil? (I read it's suppose to be about the width of my magnet)

This is the type of generator i'm building. >https://www.youtube.com/watch?v=yuKKrVlilVk Right at the beginning the video shows a rotor with 1 row of magnets going around it. I am wondering if I can add another row of magnets side by side going around the wheel.

So the wheel would look like this.

+-+-+-+-+-+-+-+-+-
-+-+-+-+-+-+-+-+-+


I am wondering if a positive and negative going across the wire at the same time would like cancel each other out or something.

• Precisely what is "electromagnetic generator"? May 11 '14 at 12:53
• Ok maybe I'm adding extras to the term that make it incorrect. But what I am building is an electric generator. I added magnetic to the it thinking that it still means generating electricity using magnets. May 11 '14 at 13:21
• Much useful information here : practicalaction.org/docs/energy/pmg_manual.pdf May 11 '14 at 15:23
• @BrianDrummond Thanx for the article. It did contain some useful information, however it wasn't able to answer my questions since I am actually building a different type of generator. I just posted a link to what it looks like in my main post. If anyone could give me the name for that type of generator i'd appreciate it! May 11 '14 at 18:33
• That thing is weird looking, but I think the most accurate name for it might be a multiphase permanent magnet alternator. I didn't see the entire construction but that seems to be where it's headed. Personally, I think I would have hacked an automotive alternator with some kind of a belt drive. May 12 '14 at 0:32