PIRA 5D40.10 - Conduction in Gases: Jacob Jr.'s Ladder
Concepts Conveyed:
- Electrons repel and move from one electrode to the other
- As the arc heats and ionizes the air it rises
Instructions / Notes:
- Place the power supply coil on one arm of the u-bend and the Jacob's Ladder attachment on the other.
- Add the additional metal piece across top and secure with bar/screw attachments.
- Turn on. If the spark does not travel, adjust the spacing of the electrodes with the small plastic lever. (Circled in white)
- DO NOT RUN FOR MORE THAN A MINUTE
Photo Shows the Demonstration Apparatus Used by the University
of Texas at Austin.
Demo Staff:
- TEST THIS DEMO BEFORE EVERY REQUEST.
- If the spark is not lighting:
- TURN OFF AND UNPLUG, then:
- Remove screws labeled A and B and take out the back panel of the plastic case.
- Sand each electrode, then replace the case and try again.
Last Updated 2024 - University of Texas at Austin Physics Dept..
- All Rights Reserved.
