Confirming Coulomb’s law - Measuring with the force sensor

VP3.1.2.2
Confirming Coulomb’s law - Measuring with the force sensor
Confirming Coulomb’s law - Measuring with the force sensor Measuring the charge on the metal ball with the electrometer amplifier (P3.1.2.2)
Confirming Coulomb’s law - Measuring with the force sensor

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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 LD
1 33700  8  Trolley LD
1 46082  8  Precision metal rail, 50 cm LD
2 46095  4  Clamp rider LD
1 524005W2 Mobile-CASSY 2 WiFi LD
1 524060  8  Force sensor S, ±1N LD
1 52170  8  High-voltage power supply, 10 kV LD
1 501051  4  Cable for high voltages, 1.5 m LD
1 59013  4  Stand rod with bore holes LD
1 30011  4  Saddle base LD
1 59002  8  Small clip plug LD
1 53214  8  Electrometer amplifier LD
1 562791  4  Power supply unit (mains adaptor), 12 V AC LD
1 57825  4  Capacitor, 1 nF, bipol., STE 2/19 LD
1 57810  4  Capacitor, 10 nF, bipol., STE 2/19 LD
1 54612  4  Faraday's cup LD
1 590011  8  Clamping plug LD
1 53216  8  Connecting rod LD
1 30002  4  Stand base, V-shaped, small LD
1 30041  4  Stand rod, 25 cm, 12 mm Ø LD
1 30101  4  Leybold multiclamp LD
1 500421  4  Connecting lead 19 A, 50 cm, red LD
1 500422  4  Connecting lead 19 A, 50 cm, blue LD
1 500424  8  Connecting lead 19 A, 50 cm, black LD
1 50142  4  Connecting lead 32 A, 100 cm, yellow/green LD
1 500610  4  Safety connecting lead, 25 cm, yellow/green LD
1 500640  4  Safety connecting lead, 100 cm, yellow/green LD

Experiment Instructions

PDF (Experiment description) PDF (Experiment description) P3.1.2.2 Confirming Coulomb’s law - Measuring with the force sensor
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