How can I collect power from a magnetic field?

In summary: If you want to extract energy from a magnetic field, you need to create a closed circuit in which the magnetic field produces power. This can be done by using a coil of wire to create a magnetic field and then using a motor to convert the field into rotational power. Alternatively, you could use a transformer to change the voltage of the field, or use a solar panel or wind turbine to convert the power to usable electricity.
  • #1
Atlantian
1
0
Im think of making a device that could harness power from a magnetic field, I hardly know any physics. Now my problem is how or what can I use or make to collect the energy from the magnetic field and turn it into power? and so it can run from a solar panel or wind energy?

please help looking for ideas if possible to make ty.

Atlantian.
 
Physics news on Phys.org
  • #2
Atlantian said:
Im think of making a device that could harness power from a magnetic field, I hardly know any physics. Now my problem is how or what can I use or make to collect the energy from the magnetic field and turn it into power? and so it can run from a solar panel or wind energy?

please help looking for ideas if possible to make ty.

Atlantian.
Welcome to PF.

Your questions do not make much sense. What magnetic field? For example, an electric generator converts mechanical energy to electrical energy using a magnetic field: http://en.wikipedia.org/wiki/Electrical_generator

And what does this have to do with solar and wind energy?

Perhaps you could rephrase your questions?
 
  • #3
Atlantian said:
Im think of making a device that could harness power from a magnetic field, I hardly know any physics. Now my problem is how or what can I use or make to collect the energy from the magnetic field and turn it into power? and so it can run from a solar panel or wind energy?

please help looking for ideas if possible to make ty.

Atlantian.

A static magnetic field doesn't have any power. You can of course take magnetic stuff which is a long way from a magnet, move it closer and extract the power, but once that's used up you have to find more stuff, and you can't put the original stuff back without supplying the energy again, regardless of the level of ingenuity involved in the mechanism.

For an analogy, consider the gravitational field of the Earth. You can't extract power from that either. You can of course let the sun move water to a high reservoir then let it fall under gravity through a hydroelectric plant, but then you are not extracting energy from the gravitational field but rather from the sun.
 

1. How does a magnetic field produce power?

A magnetic field produces power through a process called electromagnetic induction. When a conductor, such as a wire, moves through a magnetic field, it creates a flow of electrons, which is electricity.

2. What materials are needed to collect power from a magnetic field?

The materials needed are a magnetic field, a conductor, and a device to convert the electricity into usable power, such as a generator or a battery.

3. Can any magnetic field be used to generate power?

Any magnetic field can potentially be used to generate power, but the strength of the field and the speed at which the conductor moves through it will affect the amount of power that can be collected.

4. How efficient is collecting power from a magnetic field?

The efficiency of collecting power from a magnetic field depends on the strength of the field, the speed of the conductor, and the efficiency of the conversion process. Generally, it is not as efficient as other forms of power generation, such as solar or wind power.

5. Are there any potential risks or drawbacks to collecting power from a magnetic field?

One potential risk is that strong magnetic fields can be harmful to humans and other living organisms. Additionally, the production and disposal of the materials used in the collection process can have negative environmental impacts. Furthermore, the efficiency of collecting power from a magnetic field is limited, so it may not be a sustainable solution for large-scale power production.

Similar threads

B Magnetic field and generator power output
    • Electromagnetism
Replies
5
Views
1K
I How Does a Magnetic Repulsion Machine Work?
    • Electromagnetism
Replies
5
Views
331
I Behaviour of Magnetic Fields Underwater
    • Electromagnetism
Replies
2
Views
1K
I How do I visualize the magnetic field?
    • Electromagnetism
Replies
1
Views
901
B Confusing diagram of a rotating coil in a magnetic field
    • Electromagnetism
Replies
4
Views
983
I Is the Poynting Vector Field the Only Factor in Energy Flow in Circuits?
    • Electromagnetism
Replies
14
Views
1K
Placing an AC magnetic field inside a static DC field
    • Electromagnetism
Replies
8
Views
982
Calculating the magnetic field in this seemingly simple case?
    • Electromagnetism
Replies
3
Views
634
Does an AC Magnetic field induce movement in a DC Magnetic Field?
    • Electromagnetism
Replies
15
Views
2K
PPMT, Magnetic Flux Switch, electro-permanent magnet generator
    • Electromagnetism
Replies
8
Views
2K

Hot Threads

Recent Insights

Back
Top