Answer is the B- H curve plotting and getting hysteresis loop to have the value of B the flux density( residual) even at zero H in AT…..

Subject: Invitation to Join Dailyplanet.Club and Response to Your Question on Permanent Magnets

Dear Dor Gotleyb,

I hope this message finds you well.

I would like to invite you to join us at www.Dailyplanet.Club, where innovators, researchers, and professionals gather to explore technology-driven solutions. Your inquiry about calculating the magnetic field of a permanent magnet and its Z-axis component aligns with some of the discussions we are having on electromagnetism and energy generation. We would love to have you contribute your thoughts to our community.

Regarding your question, the magnetic field of a standard permanent magnet depends on its geometry (rectangular or cylindrical) and material. While finding an exact analytical expression is challenging, here are some general insights:

• For a rectangular magnet, an approximation can be made using the Biot-Savart law or Coulomb's law of magnetism. The Z-axis component can be extracted based on symmetry and geometry.
• For a cylindrical magnet, the magnetic dipole model can often be used for approximating the field along the Z-axis.
• You may also want to explore finite element analysis (FEA) software, like COMSOL or ANSYS, to simulate the magnetic field for more accurate results.

If you're looking for more specific solutions, I’d be happy to continue the discussion at Dailyplanet.Club, where we explore advanced topics in energy, electromagnetism, and more.

Looking forward to your participation!

Best regards, MJ CEO, Dailyplanet.Club MJHSA Ltd.