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Confirming Coulomb’s law - Measuring with the force sensor /
Confirming Coulomb’s law - Measuring with the force sensor

Confirming Coulomb’s law - Measuring with the force sensor

VP3.1.2.2

Measuring the charge on the metal ball with the electrometer amplifier (P3.1.2.2)

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Description

In the experiment P3.1.2.2, the force sensor is connected to a measuring instrument, which displays the measured force directly. No calibration is necessary. The coulomb force is measured as a function of the distance r between the sphere midpoints, the charge Q₁ of the first sphere and the charge Q₂ of the second sphere. The charges of the spheres are measured using an electrometer amplifier connected as a coulomb meter. The aim of the evaluation is to verify the proportionalities

and to calculate the permittivity ε₀.

Components of equipment sets

1	314263 8	Bodies for electric charge, set
1	33700 8	Trolley
1	46082 8	Precision metal rail, 50 cm
2	46095 4	Clamp rider
1	524005W2	Mobile-CASSY 2 WiFi
1	524060 8	Force sensor S, ±1N
1	52170 8	High-voltage power supply, 10 kV
1	501051 4	Cable for high voltages, 1.5 m
1	59013 4	Stand rod with bore holes
1	30011 4	Saddle base
1	59002 8	Small clip plug
1	53214 8	Electrometer amplifier
1	562791 4	Power supply unit (mains adaptor), 12 V AC
1	57825 4	Capacitor, 1 nF, bipol., STE 2/19
1	57810 4	Capacitor, 10 nF, bipol., STE 2/19
1	54612 4	Faraday's cup
1	590011 8	Clamping plug
1	53216 8	Connecting rod
1	30002 4	Stand base, V-shaped, small
1	30041 4	Stand rod, 25 cm, 12 mm Ø
1	30101 4	Leybold multiclamp
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
1	500610 4	Safety connecting lead, 25 cm, yellow/green
1	500640 4	Safety connecting lead, 100 cm, yellow/green

Experiment Instructions

PDF (Experiment description)

P3.1.2.2 Confirming Coulombs law - Measuring with the force sensor

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Confirming Coulomb’s law - Measuring with the force sensor

Description

Components of equipment sets

Experiment Instructions

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