Embedded Files
Dirod Generator
Dirod Generator
Principles Illustrated: Electrostatic Generators: Induction
Location: Cabinet E, Shelf 2
The open construction of the Dirod makes it suitable for illustrating the principles of electrostatic induction generators. Generating about 40KV, the Dirod is suitable for only a few other demos.
Electroscope
Electroscope
Principles Illustrated: Charge and Electrostatic Force
Location: Cabinet E, Shelf 2
A good quality electroscope suitable for a number of demonstrations where charge quantity and 'polarity' need to be presented.
Generic Induction Tricks
Generic Induction Tricks
Principles Illustrated: Electrostatic force, induction
Location: Cabinet E, Shelf 4
Various 'tricks' are possible using either a Van de Graaf or the rods/fur to demonstrate electrostatic forces.
PVC pipe and soda can demonstrate induction by charging the PVC pipe and the soda can is attracted to the charged pipe.
Rotating 2M stick--A two-meter stick is balanced on a lead ball. A charged rod is held near one end. Electrostatic induction causes the stick end to 'follow' the rod.
Rice crispies/styrene pellets--Styrene pellets in a flask undergo erratic motion when the flask is placed near the Van de Graaf. Rice crispies also work, flying around quite dramatically.
Jacob's Ladder
Jacob's Ladder
Principles Illustrated: Movement of Ionization Path
Location: Back Counter
The standard climbing arc demonstration, and a late-night movie classic: The high voltage spark follows the ionized gas as it rises between the leads. An adjustable high-voltage supply is used to power the arc.
Rods and Fur
Rods and Fur
Principles Illustrated: Charge, Static Electricity
Location: Cabinet E, Shelf 3
Fur, silk and wool can be rubbed on rods of glass, rubber or plastic to cause charge separation. The materials can then be used to transfer charge to an electroscope or attract and repel other objects.
Best performing combination: Silk and plastic
Van de Graaff
Van de Graaff
Principles Illustrated: Electrostatic Generators
Location: Cabinet F, Shelf 4
The classic belt operated induction generator. Used mostly as auxiliary demonstration equipment.
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