when u see all the wind mills together. and we make electicity with them. how does it work and how much is it to get a small one.
2007-09-17 08:32:10 · 4 answers · asked by DANIELL 1 in Science & Mathematics ➔ Engineering
Newtons law of intertia.
Wind strikes an angled blade and is forced to change direction. A force equal to the force required to change the direction of the airflow, but in the opposite direction causes the blades to move in the direction of the reaction force.
Dynamo.
The rotataing shaft turns a wheel that causes magnets to travel accross stationary magnets. The variation in the magnetic field generates an electric current.
Search the internet for prices, but unless you live on a forty acre ranch on a windy mountain pass, do not expect to generate enough electricity to power more than a loght bulb or two.
2007-09-17 09:16:15 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Just keeping to the basics.
If you run a magnets over a wire it will make electricity.
So a windmills turns coils around magnets making power.
Getting a windmill isn't really that much for a small unit There are 800watt models on ebay for $400 if you tired to do this with solar you would have to pay around $3,000.
The cost of the wind mill(or solar) isn't the only thing. You have to buy a inverter to change the power into something you can use.(anywhere from 100,to 2000) And you have to buy a battery setup(100-1000) to store you power. Last is a regulator/charger(50ish) so you don't overcharge your battery setup. After buying all this setting it up is really easy. They make it as simple as they can it's all plug and play it will take a day to read the paper work but i believe anyone can do it with a little help.
2007-09-17 15:29:24 · answer #2 · answered by Yoho 6 · 0⤊ 0⤋
A windmill are natural voltage generators. Inside the mill you would see the poles of magnet surrounding the actuator which is connected to the mills. As the mill rotates, a magnetic field is produced within the system and consequently an electric current. Because every time a magnetic field is produced, current is also produced in different direction which is indicated in the right hand rule.
2007-09-18 06:58:33 · answer #3 · answered by RoNaLd 2 · 0⤊ 0⤋
Look up 'wind generators' on the web. Tons of sites on the subject.
Doug
2007-09-17 08:56:45 · answer #4 · answered by doug_donaghue 7 · 0⤊ 0⤋