Coulomb's Law: Electrostatics
Rods & Pivot
PIRA Class: 5A20.10

Purpose
To demonstrate like charges repelling and unlike charges attracting.

Description
With one charged rod on a pivot, use another rod of the opposite or same charge to show attraction or repulsion.
NOTE:
- This demo may not work on a humid day.
NOTE: If irregularities are observed in the interactions of the charged objects, it is recommended that all synthetic, including black carts, materials involved be rinsed off with water or wiped down with a wet cloth.

Equipment
Glass & rubber rods, silk & rabbit fur, & nylon thread
Support Equipment
Small stand