Electrophorus with fur resting on the demonstration bench

Concept Overview

1. Electrostatic charge can be produced through induction.

2. Production of electrostatic charge is cyclical, and production could be automatically carried out by a properly designed machine.

Lecturer Procedure

Task(s) Expected Result
1. Charge hard rubber base by rubbing with fur. No observable result

1. Set thick disk down on base.

2. Touch base with hand

3. Lift disk off base by holding rubber handle.

4. Touch base again.

Spark is produced

1. Repeat previous set of steps multiple times.

Spark does not diminish in intensity.


E&M: ES - 004