Faraday's Butterfly Net Electricity & Magnetism_Circuits sized so that students can

sized so that students can compare its uniform-curvature surface charge against sphere and cone partners in the conductor set

Wider 70 x 20 x 8mm cross-section on this Alnico bar pair gives a broader pole face than typical bar magnets

Reel of bare 18 SWG copper wire totaling roughly 80 feet by mass

5-inch diameter artery cross sections reveals atherosclerosis

mechanical-advantage

Faraday's Butterfly Net Electricity & Magnetism_Circuits sized so that students canDemonstrates that charge resides only on the outer surface of a conductor by inverting the charged net inside out and showing the charge transferring to the new outside layer.