Lecture Demonstrations Laboratory

The Demonstrations Manual

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Electrostatics
Electric Fields And Potential: Van de Graaff Generator; Electrostatic Bell; Electric Lines of Force; Electrostatic Motor; Electric Fields; Gauss' Law; Radio in Faraday's Cage; Lightning Rod; Electric Wind; Ionic Drive; Smoke Precipitator
Capacitance
Current and Resistance
Electromotive Force And Current
DC Circuits
Magnetic Materials
Magnetism
Inductance
Induction
Complex Circuits
Semiconductors And Tubes
Transmission Lines and Antennas

Electric Lines of Force

Purpose:

To show the direction of the electric field between two parallel, charged, plates.

Procedure:

Set pointers between plates and connect each plate to an electrode of the Wimshurst machine. Observe the alignment of the pointers when the machine is cranked.

Comments:

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Equipment:

Wimshurst Machine
Aluminum pointers on stands
Parallel Metal Plates