PIRA 5D20.60 - Resistivity and Temperature: Conduction in Glass
Instructions / Notes:
- This is a step up transformer.
- The glass tube receives a current supplied from a step-up transformer controlled by a variac.
- Set the variac to 0 Volts and slowly increase the knob to 15 Kilo Volts.
- Please, keep clear of any part of the apparatus above the table top.
- Heat the glass rod with a bunsen burner until the glass glows brightly.
- A neon light will come on as the glass becomes a conductor.
- Remove the burner and conduction is sustained. Grasp only the hose when moving the burner.
- Disconnect the A.C. outlet cord so students are not able to play with the apparatus after each use.
Photo Shows the Apparatus Used by the University of Texas at Austin.
Drawing is by Courtesy of the University of Minnesota.
Last Updated 1/98 - University of Texas at Austin Physics Dept.
- All Rights Reserved.
