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Electrostatic induction with the hemispheres after Cavendish /
Electrostatic induction with the hemispheres after Cavendish

Electrostatic induction with the hemispheres after Cavendish

VP3.1.5.2

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Description

The experiment P3.1.5.2 reconstructs a historic experiment first performed by Cavendish. A metal sphere is mounted on an insulated base. Two hollow hemispheres surround the sphere completely, but without touching it. When one of the hemispheres is charged, the charge distributes itself uniformly over both hemispheres, while the inside sphere remains uncharged. If the inside sphere is charged and then surrounded and contacted by the hemispheres, the two hemispheres again show equal charges, and the inside sphere is uncharged.

Components of equipment sets

1	543021 4	Sphere on insulated stand rod
1	54305 8	Cavendish hemispheres, pair
1	52170 8	High-voltage power supply, 10 kV
1	501051 4	Cable for high voltages, 1.5 m
1	53214 8	Electrometer amplifier
1	562791 4	Power supply unit (mains adaptor), 12 V AC
1	57825 4	Capacitor, 1 nF, STE 2/19
1	57810 4	Capacitor, 10 nF, STE 2/19
1	531120	Multimeter LDanalog 20
1	53216 8	Connecting rod
3	30011 4	Saddle base
1	34089 4	Coupling plug 4 mm
2	30041 4	Stand rod, 25 cm, 12 mm Ø
2	30101 4	Leybold multiclamp
1	59013 4	Stand rod with bore holes
1	500610 4	Safety connecting lead, 25 cm, yellow/green
1	500421 4	Connecting lead 19 A, 50 cm, red
1	500422 4	Connecting lead 19 A, 50 cm, blue
1	500424 8	Connecting lead 19 A, 50 cm, black
1	50142 4	Connecting lead 32 A, 100 cm, yellow/green

Experiment Instructions

PDF (Experiment description)

P3.1.5.2 Electrostatic induction with the hemispheres after Cavendish

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Electrostatic induction with the hemispheres after Cavendish

Description

Components of equipment sets

Experiment Instructions

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