PIRA 5H25.00 MAGNET/ELECTROMAGNET INTERACTIONS

DCS #DEMONSTRATIONREFERENCEABSTRACT
5H25.00Magnet/Electromagnet Interact.
5H25.10magnet in a coilPIRA 1000
5H25.10magnet in a coil5H25.10
5H25.10interaction of magnet and coilEr-1A solenoid on a pivot and a magnet on a pivot interact.
5H25.10interaction of flat coil & bar mag.Ei-7A bar magnet is mounted in a large flat coil.
5H25.10magnet in a coilE-124The deflection of a compass needle in the center of a large coil placed in the plane of the magnetic meridian is proportional to the tangent of the current.
5H25.10solenoid bar magnetDisc 19-10A suspended solenoid reacts with a bar magnet only when the current is on.
5H25.15period of a bar magnetEr-3A magnet oscillates in a coil proportional to the square of the current in the coil.
5H25.20jumping magnetPIRA 1000
5H25.20jumping magnet5H25.20Place a bar magnet in a vertical transformer and apply DC with a tap switch.
5H25.25force on a solenoid corePIRA 1000
5H25.25force on solenoid coreE-128When a solenoid is energized a iron core is violently drawn into the coil.
5H25.30magnetically suspended globePIRA 1000
5H25.60unipolar motorE-137Two magnetized knitting needles mounted as the legs of an "H" suspended by a string rotate when a current flows upward through a rod.
5H25.70floating magnetic balls31-1.30Thousands of small magnetic balls floating freely on the surface of water form hills and hollows when excited by a ac magnetic field. Pictures.
5H25.75Ampere's antsAJP 43(1),111A fun hall display: hide a pushbutton controlled magnetic stirrer under a dish of iron filings.

ReferenceDescription
M-1Sutton
Ma-1Freier & Anderson
M-1dHilton
8-2.8Meiners
1A12.01University of Minnesota Handbook
AJP 52(1),85American Journal of Physics
TPT 15(5),300The Physics Teacher
Disc 01-01The Video Encyclopedia of Physics Demonstrations

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