How Fast Can a Magnet Train Go in a Circular Tunnel?

In summary, a magnetic train in a circle, or maglev train, operates using magnetic levitation and has magnets on the bottom that repel against those on the track. This allows for faster speeds, lower maintenance costs, and reduced noise and pollution. The train stays on the track through the interaction of magnetic fields. Safety concerns are minimal due to the lack of physical contact with the track and the possibility for safety features. Compared to other modes of transportation, maglev trains have similar speeds to airplanes but with the added benefits of constant speed and lower environmental impact.
  • #1
leoliu88889
1
0
I was wondering, if the magnet train is propelled by putting same polar magnet face each other at an angle and its natural magnetic property same pole repel, that's how it'spushing the train faster and faster...now what if we create a circular tunnel and have the train push itself and repel continuously faster and faster, wonder how fast it will go...
 
Physics news on Phys.org
  • #2
leoliu88889 said:
I was wondering, if the magnet train is propelled by putting same polar magnet face each other at an angle and its natural magnetic property same pole repel, that's how it'spushing the train faster and faster...now what if we create a circular tunnel and have the train push itself and repel continuously faster and faster, wonder how fast it will go...
Newton's third law will prevent it moving at all.
 
  • #3
If some setup of your train or tunnel used electromagnets, instead of permanent magnets, then all you have done is create a very inefficiently-designed electric train.

If you propose to use permanent magnets for the whole thing, it will not work at all. You can't use permanent magnets as a source of energy.
 
  • Like
Likes russ_watters and PeroK
  • #4
Thread closed for Moderation...
 
  • #5
leoliu88889 said:
I was wondering, if the magnet train is propelled by putting same polar magnet face each other at an angle and its natural magnetic property same pole repel, that's how it'spushing the train faster and faster...now what if we create a circular tunnel and have the train push itself and repel continuously faster and faster, wonder how fast it will go...
Welcome to PF. :smile:

We do not allow discussions of Perpetual Motion Machines (PMMs) or Over-Unity Mechanisms. Please have a look at this Insights Article to understand why. Thank you.

https://www.physicsforums.com/insights/why-we-dont-discuss-perpetual-motion-machines-pmm/

Thread will remain closed.
 
  • Like
Likes Bystander

What is a magnetic train in a circle?

A magnetic train in a circle is a form of transportation that uses magnetic levitation technology to propel a train along a circular track. The train is suspended and propelled by powerful magnets, eliminating the need for traditional wheels and tracks.

How does a magnetic train in a circle work?

The train is equipped with powerful electromagnets that are used to create a magnetic field. This magnetic field interacts with the track, which is also equipped with magnets, causing the train to levitate and move along the track. The speed and direction of the train are controlled by adjusting the strength and polarity of the magnets.

What are the advantages of a magnetic train in a circle?

A magnetic train in a circle offers several advantages over traditional trains. It can reach higher speeds, has lower maintenance costs, and produces zero emissions. It is also quieter and smoother, providing a more comfortable ride for passengers.

What are the potential challenges of implementing a magnetic train in a circle?

One of the main challenges is the high cost of building and maintaining the infrastructure for a magnetic train in a circle. It also requires a significant amount of energy to power the electromagnets. Additionally, there may be concerns about the safety and reliability of the technology.

Are there any existing examples of a magnetic train in a circle?

Yes, there are several examples of magnetic trains in a circle around the world, including the Shanghai Maglev Train in China, the Yamanashi Maglev Test Line in Japan, and the Transrapid in Germany. These trains are currently used for transportation and have shown promising results in terms of speed and efficiency.

Similar threads

B Any limit on how fast a Maglev can go?
    • Classical Physics
Replies
33
Views
1K
I How Do Eddy Current Dampers Work in Space Applications?
    • Electromagnetism
Replies
4
Views
284
How to calculate the voltage induced in a coil by an AC magnetic field?
    • Electrical Engineering
Replies
7
Views
3K
How Can a Ship Safely Brake in Space Without Crushing Its Inhabitants?
    • Sci-Fi Writing and World Building
3
Replies
90
Views
6K
How much twist on a propeller?
    • Aerospace Engineering
Replies
2
Views
2K
Ring magnet sliding on iron core solenoid actuator
    • Electromagnetism
Replies
1
Views
3K
Frictionless Sliding Magnet
    • Electromagnetism
Replies
4
Views
2K
How Can You Determine the Reach of a Magnetic Field?
    • Electromagnetism
Replies
1
Views
3K
Repelling Non-Magnetized Metal
    • Electromagnetism
Replies
4
Views
15K
Youtube rail gun videos physics
    • Other Physics Topics
Replies
10
Views
3K

Hot Threads

Recent Insights

Back
Top