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Determining the electric unit charge after Millikan and verifying the charge quantification - Measuring the suspension voltage and the falling speed with CASSY

VP6.1.2.3
Determining the electric unit charge after Millikan and verifying the charge quantification - Measuring the suspension voltage and the falling speed with CASSY
Determining the electric unit charge after Millikan and verifying the charge quantification - Measuring the suspension voltage and the falling speed with CASSY The histogram reveals the qantum nature of the change (P6.1.2.1-4)
Determining the electric unit charge after Millikan and verifying the charge quantification - Measuring the suspension voltage and the falling speed with CASSY

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Description

In the variation P6.1.2.1 and P6.1.2.3, the electric field

is calculated from the voltage U at the plate capacitor at which the observed oil droplet just begins to hover. The constant falling velocity v1 of the droplet when the electric field is switched off is subsequently measured to determine the radius. From the equilibrium between the force of gravity and Stokes friction, we derive the equation

Components of equipment sets

1 559412  8  Millikan apparatus LD
1 559421 Millikan supply unit LD
1 524013  8  Sensor-CASSY 2 LD
1 524220  4  CASSY Lab 2 LD
1 524034  4  Timer box LD
3 500441  4  Connecting lead 19 A, 100 cm, red LD
3 500442  4  Connecting lead 19 A, 100 cm, blue LD
2 500444  4  Connecting lead 19 A, 100 cm, black LD
1 additionally required:
PC with Windows XP/Vista/7/8/10 (x86 or x64)

Experiment Instructions

PDF (Description from CASSY Lab) PDF (Description from CASSY Lab) P6.1.2.3 Determining the electric unit charge after Millikan and verifying the charge quantification - Measuring the suspension voltage and the falling speed with CASSY
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