Filament and Magnet with AC

Light bulb and switch (AC or DC)
PIRA: 
5H40.23
Area: 
5 Electricity and Magnetism
Topic: 
5H Magnetic Fields and Forces
Concept: 
Force on Current

 

This device will light a bulb using DC or AC current. Placing a magnet near the bulb will cause the filament to vibrate when using AC but not DC.

NOTE: Caution must be used! Making the filament vibrate beyond a reasonable level will cause it to break!

 

Demo Contact

Scott Thomas
Demonstration Manager
828-262-2435
thomassa@appstate.edu