Insert this simple device into the top of a 250-mL Erlenmeyer flask and you instantly have a flask form electroscope. Start charging the ball terminal by contact or induction and watch the foil leaves respond. A perfect and inexpensive addition to your electrostatic demonstration materials. Flask sold separately.
Additional ResourcesNo Additional Resources at the time.
Flinn Catalog/Reference Manual Page 674
Flinn Middle School Catalog/Reference Manual Page 406