Alnico 3 Rod Magnets Popular Q&A

Q: What is the minimum current in the rod that will cause it to floa...
A: F = ILB for a current carrying wire in a magnetic field, assuming that the current and magnetic field are orthogonal. F = mg is the force due to gravity. Hope t... Read More »

Q: What is the speed of a rod 0.5m moving in a perpendicular magneti...
A: From Faraday's law for electromagnetic induction . Induced emf (E) = rate of change of magnetic flux linkage . E = n ∆(B.A)/t. In this case, the changing factor... Read More »

Q: What is the diameter of older magnets vs. the newer Alnico rods?
A: Many of the early magnets used on Fender instruments had a rough surface sand cast magnet with an average diameter of .197”. The larger diameter magnets were us... Read More »

Q: What's the difference in these magnets? alnico 2 vs 3 vs 5
A: Alnico 3 is my most favourite neck PU magnet just because they have recently been able to wind them correctly. Boutique PU makers do it right where as machine a... Read More »

Q: How can you distinguish between an Alnico 3 and Alnico 5 magnet i...
A: Generally, it's difficult to tell one magnet grade from another just by appearance (except for ceramic vs. alnico). You can send it to a lab for analysis or you... Read More »

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