How much current could be made ?

[glasshopper]

Hi all,
I was just wondering if there are any figures or math to work out how much current could be produced by Slowly passing a magnet through a coil.

I'm looking for about 2 watts @ 12 volts which i think is about .2 of an amp...........Would this be achievable ?

I have an idea in my head and just need to work over a few things before i expand.


Many thanks.

[glasshopper]

Ok....Maybe i'm asking how long a piece of string is !!!

I'll try and be a bit more specific...
Firstly the length of the coil is not a restriction...But for ease of a prototype i'll say its 24 inches long.....Tho it could be 20ft or 200ft theoretically.

Secondly the size of the magnet is not a restriction.

Thirdly the device i need to power up does not need to run continuously....A burst of about half a second or so should do every other cycle.

I've read that by letting a magnet drop through a copper tube its natural velocity is reduced....would the same happen with a 2ft coil. ?
And if it was slowed would it still produce a usable current. ?
This could kill my idea !!!

And finally would it be more efficient to split the 24" coil into smaller coils, and maybe to use a series of smaller magnets that pass thro the coil instead of one large one.?

Apologies if i come across a bit vague...Its because i'm none too clever and it would be so easy for me to overlook a glaringly obvious flaw in my
idea.


Any thoughts or remarks appreciated.

[Beshires1]

[glasshopper]

[SeaMonkey]

[glasshopper]

Many thanks for taking the time to reply "Seamonkey",

Kinda guessed the magnets and coils would be the stumbling block......Its a shame, I would have loved to have made a difference.

[SeaMonkey]

[Hybrid]

[Hybrid]