This discussion focuses on calculating the forces between a permanent magnet and an electromagnet, specifically addressing the complexities involved in such calculations. Key variables include the magnetic field strengths (X and Y in Teslas), distance (Z in meters), and the geometry of the magnets. The conversation highlights that while torque can be generated, the net force in a uniform magnetic field, such as that of the Earth, is effectively zero. The participants emphasize the importance of understanding magnetic pole moments and the limitations of existing equations for real-world applications.
PREREQUISITESPhysics students, electrical engineers, and hobbyists interested in magnetism, electromagnet design, and force calculations in magnetic fields.
It doesn't. You had also asked about how refrigerator magnets work, and my answer was to that specific question.CCatalyst said:How does that relate to this particular case?
CCatalyst said:Also I realize that other materials can interfere with magnetic fields and seem to block them out. Fro example, I've seen magnets where they attach to a filing cabinet or refrigerator you can see the sticker on the side facing you, usually with an advertisement on it. Flip it around however, it falls like a rock. So what is going on in that case
My understanding is the meissner effect is exclusive to superconductors. A superconductor is rendered nearly perfectly diamagnetic by virtue of the meissner effect, however, a wide range of diamagnetic materials exist.CCatalyst said:All I'm asking is are there other materials besides superconductors that can deflect magnetic fields the same way the meissner effect does?