School of Physics Lecture Demonstration Manual

Electrostatics

El-1 Charging by Induction

Published: Tuesday 14 March 2006

To charge an electroscope by induction.

El-2 The Electrophorous - Charging by Induction

Published: Tuesday 14 March 2006

To demonstrate charging by induction using the electrophorous.

El-3 Repulsion of Like Charges

Published: Tuesday 14 March 2006

To demonstrate that like charges repel.

El-4 The Capacitor

Published: Tuesday 14 March 2006

To demonstrate that the capacitance of a parallel plate capacitor is inversely proportional to d the distance of separation.

El-5 Visualisation of Electric Field Lines

Published: Tuesday 14 March 2006

To demonstrate the electric field line configuration for various pairs of electrodes.

El-6 Biot's Apparatus

Published: Tuesday 14 March 2006

To demonstrate that the charge resides on the surface of a statically charged conductor.

El-7 Kelvin Water Dropper Induction Device

Published: Tuesday 14 March 2006

To demonstate a simple charge generating device.

El-8 Van de Graaff Generator (Lighting a Fluorescent Tube)

Published: Tuesday 14 March 2006

To demonstrate the large electric field gradient of a Van de Graaff generator.

El-9 Electrostatic Voltmeter

Published: Tuesday 14 March 2006

To demonstrate the electrostatic voltmeter and to show the energy stored in a capacitor.

El-10 Electric Pinwheel

Published: Tuesday 14 March 2006

To demonstrate a simple electrostatic motor.

El-11 Franklin's Bell (Lightning Warning Device)

Published: Tuesday 14 March 2006

To demonstrate Benjamin Franklin's lightning warning device.

El-12 Cottrell Smoke Precipitator

Published: Tuesday 14 March 2006

To demonstrate an industrial application of electrostatics.

El-13 Faraday's Cage

Published: Tuesday 14 March 2006

To demonstrate that there is no electrostatic field inside a statically charged conductor.

El-14 Saint Elmo's Fire

Published: Tuesday 14 March 2006

To demonstrate the phenonemon of Saint Elmos Fire.

El-15 Whimshurst Machine

Published: Tuesday 14 March 2006

To demonstrate the Whimshurst electrostatic generator

El-16 Piezoelectric static electricity generator

Published: Tuesday 05 June 2007

To illustrate a simple electrostatic generator that is almost impervious to humidity problems.

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