Induced Currents

From UO Physics Demonstration Catalog

Revision as of 13:45, 20 April 2022 by Physdemo (talk | contribs) (Created page with "{{NewDemo|subject=Electricity and Magnetism|topic=Inductance|file1=Induction Coil.gif}} A linear motor salvaged from an old hard drive is the heart of this demo. Attach a small bulb to the leads of the coil and it will light when the coil is moved up and down in the strong magnetic field. Attach a battery to the leads and the coil will climb out of its holder. Attaching an oscilloscope to the leads shows the direct relation between induced EMF and changing flux -- both...")
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Induction Coil.gif

Description:

A linear motor salvaged from an old hard drive is the heart of this demo. Attach a small bulb to the leads of the coil and it will light when the coil is moved up and down in the strong magnetic field. Attach a battery to the leads and the coil will climb out of its holder. Attaching an oscilloscope to the leads shows the direct relation between induced EMF and changing flux -- both sign and magnitude.

Location:

  • Shelf J-4