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

VP6.1.2.1
Determining the electric unit charge after Millikan and verifying the charge quantification - Measuring the suspension voltage and the falling speed
Determining the electric unit charge after Millikan and verifying the charge quantification - Measuring the suspension voltage and the falling speed The histogram reveals the qantum nature of the change
Determining the electric unit charge after Millikan and verifying the charge quantification - Measuring the suspension voltage and the falling speed

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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  8  Millikan supply unit LD
1 575471  8  Counter S LD
3 50146  8  Connecting leads, 19 A, 100 cm, red/blue, pair LD
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