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PURPOSE: To demonstrate Jacob's ladder.
DESCRIPTION: This version of Jacob's ladder works using a spark coil. The discharge travels up a tube, creating an interesting sound which you can ask your students to explain using their vast knowledge of acoustics.
SUGGESTIONS:
REFERENCES: Available. (PIRA unknown.)
EQUIPMENT: Jacob's ladder mounted on spark coil with 5 V power supply.
SETUP TIME: 10 minutes.
