How to solve for the NUMBER OF TURNS in a magnetic coil..? |

How to solve for the NUMBER OF TURNS in a magnetic coil..?

Tue, Jul 27, 2010

Hello.. i would like to ask if somebody can answer my question..
i need to know how many turns do we make in our coil..
We have a magnetic wire #32..
And we have a magnet with a strength of 150mT+ but just below 200mT(millitesla)
Our magnet has a shape of a semi-circle a bit wider than a U.. (the magnet we got is just from a hard drive)
Now we are going to make an generator with a magnet between 2 coils..
by the way we are making a WindBelt..
for you to actually know what i really mean and tried to explain, just click this link..

http://www.popularmechanics.com/technolo…

now we don’t really understand what the equations of inductance really means because we are still new to the topic…
Can someone help us answer our question in the easiest and most understandable way?? Thanks..

Uhmm we DON’T KNOW WHAT TYPE OF CORE did the inventor of WindBelt use.. can u also tell us what it is??

coils, hard drive, inductance, inventor, magnet, magnetic wire, semi circle, shape

One Response to “How to solve for the NUMBER OF TURNS in a magnetic coil..?”

Marianna Says:
27. July 2010 at 6:21 pm

There are hundreds of people experimenting with the windbelt generator.
Just type "Windbelt" into your search engine, and you will see many sites about it. Surely, one of them (or the sum of them) will give you all the information you need.
As for the number of turns (coil): This is always a compromise between voltage and current. The more turns, the more voltage, but because of the wire resistance, the current reduces with more turns (length of wire). You will therefore often find that (any) generators produce a relatively high voltage, which then gets stepped-down (with a transformer, voltage down, current up) to achieve something useful.

Marianna Says:
27. July 2010 at 6:21 pm
There are hundreds of people experimenting with the windbelt generator.
Just type "Windbelt" into your search engine, and you will see many sites about it. Surely, one of them (or the sum of them) will give you all the information you need.
As for the number of turns (coil): This is always a compromise between voltage and current. The more turns, the more voltage, but because of the wire resistance, the current reduces with more turns (length of wire). You will therefore often find that (any) generators produce a relatively high voltage, which then gets stepped-down (with a transformer, voltage down, current up) to achieve something useful.