Repelling force of magnets - Physics Stack Exchange
WEBThe formula to calculate the force between two magnets includes separation distance in the denominator. When the separation distance becomes 0 0, the force is infinity. Even if a small separation distance is inserted, the force is determined to be very high. Two 3 cm neodymium (#52) magnets, same poles forced together, can reach forces of 1 to ...
Where do magnets get the energy to repel? - Physics Stack …
WEBWork = Force x distance. If there is a 10N [Newton] force acting on a ball, and you move the ball by 1m [meter], you have done 10N x 1M = 10Nn = 10J [Joule] of work (provided the force is constant). So, if you move the magnetic poles against each other, you do work (against the EM field). Then, if you attach the magnets to a spring and let go ...
Potential energy from opposing magnets repelling each other with …
WEBBy the way, as magnetic forces are long range, it will actually never be zero. If the gap is much larger than the magnets extensions you may approximate the interaction by point dipoles. Note: If you have rectangular magnets with parallel oriented edges, there are exact formulas to calculate the energy, sophisticated ones, though.
electromagnetism - What is really going on when two natural …
WEBJun 27, 2021 · To understand the mechanism for such large magnets, and why they attract or repel each other, it is better to try to understand it from classical electromagnetic theory. In this case, we imagine magnets to be composed of many tiny current loops made from electrons circling $^1$ in atoms. These loops are magnetic dipoles that each produce …
Can superconducting magnets fly (or repel the earth's core)?
WEBAnalyzing a non-circular current loop would be a little more complicated, but this page confirms that "the total magnetic force on a magnet in a uniform magnetic field is exactly zero, and the forces we normally associate with magnets repelling or attracting are proportional to the rate of change of the field strength with position."
Magnetic Pull/Repelling force of magnets? - Physics Forums
WEBJun 2, 2012. Force Magnetic Magnets. In summary, the conversation discusses the differences between pull and repelling forces of neodymium magnets. The pull force is measured in pounds and refers to the lifting capability of the magnet, while the repelling force is measured in gauss and depends on factors such as field strength, size, and shape.
electromagnetism - Do two magnets stacked on top of each other …
WEBIn designing a switch, I made it such that it "springs" back via two neodymium magnets (one in button repelling one in switch). I've found the magnets are too weak and don't spring back. I've resorted to putting a spring in the prototype for now and it works fine. I have to produce 1000s of these.
Generating electricity through magnetic repullsion
WEBJun 30, 2011 · Generating electricity through magnetic repulsion involves using the force of repulsion between two magnets to produce motion in a coil of wire. This motion creates a changing magnetic field, which induces an electric current in the wire according to Faraday's Law of Induction. 2.
electromagnetism - When two magnets attract and move each …
WEBMay 10, 2019 · The same applies when pulling attracting permanent magnets apart. In contrast, when you allow two repelling magnets to accelerate away from each other (or two attracting magnets to accelerate towards each other), the energy stored in the magnetic field decreases, and is transferred to the kinetic energy of the magnets.
Understanding the Repelling Forces of Magnets - Physics Forums
WEBJul 14, 2015. Forces Magnet Magnetic Magnets Repel. In summary, the force between two magnets is proportional to the cross section area of the airgap between them and the energy in the airgap determines the force. Therefore, if a smaller magnet is used in place of a larger one, it will still experience the same amount of force as long as the ...
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