Recent content by shustrng

Thanks Charles. Well the sliding washer is just a simple trick to show the end effect but I hope to have suggestions to try to dampen/shorten this effect and be able to use the entire length as a more linear field for other uses.

How can the "end effect " be reduced on a long Bar magnet where the (for example) North pole is along the length of the top side. For example a 0.5 cm square bar say 5" long is stuck (South) onto a metal backing. The center length of 4" has a linear field effect but the ends have a bloom...