Why don’t we use magnets to turn turbines and generate electricity?


Why don’t we use magnets to turn turbines and generate electricity?

In: Physics

you can. its not 100% efficient though so there are losses, often making it not worthwhile.

how do you move the magnets to induce the electrical current? hence things like water turbines which put simply, use the preexisting flow of water to turn a turbine with magnets on it to induce current.

edit added some extra detail.

What’s going to push the magnets?

You can’t get free energy. If you ever think you’ve found free energy you haven’t, it just means you didn’t pay attention to something in your system.

We use super hot steam, or large quantities of water to turn turbines which spin generators. You always need an energy source since you can only convert, not create

It’s the magnets turning that generates the electricity. The turbines are there to turn the magnets.

Magnets are not a source of energy. When two magnets attract each other you need to expend more energy to pull them apart than you could obtain from their movement. When two magnets repel each other you need to expend energy to push them together. You can’t use an arrangement of magnets to make other magnets spin because the magnetic fields as a whole interact with each other, which will result in whatever you’re trying to spin getting locked into place.

When people talk about using magnets as a source of energy they are referring to free energy devices. A free energy device is impossible, it’s not possible to create or destroy energy, only change it’s form.

Captain Disillusion did a video on free energy devices and magnets awhile back with a former TV scientist. [https://youtu.be/sT_bTnkwLuE](https://youtu.be/sT_bTnkwLuE)

What energy source is turning the magnets?

Wind? Water? Hot compressed gasses? Steam?

Magnets aren’t magical. They don’t create energy out of nothing. Setting up a magnetic field consumes energy, and when the field is released, the same amount of of energy is expelled.