Recent content by Ask Why!

Perhaps the real question I should ask is: Why does the region near the magnet diverge from the dipole field?

After probing the ring more carefully, I found the field is better described by the attached modified image. The green arrows show the field further from the magnet. Note the areas directly above and below the hole where the yellow and green direction arrows are tip to tip and tail to tail...

Point taken. I have attached a more accurate illustration of the expected field.

Magnet Phenomenon: The "divergent" region of a ring magnet Here's a puzzler: I have a NdFeB ring magnet, 1.75" outer diameter x 1.375" inner diameter x 0.25" thick, N40 grade. It is axially magnetized so that the north pole is toward one face and the south pole is toward the opposite face. The...