Planck's constant measurement by Landauer quantization for students laboratories

A simple experimental setup for measuring the Planck's constant, using Landauer quantization of the conductance between touching gold wires, is described. It consists of two gold wires with thickness of 0.5 mm and 1.5 cm length, and an operational amplifier. The setup costs less than $30 and ca...

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Veröffentlicht in:	arXiv.org 2018-07
Hauptverfasser:	Damyanov, Desislav S, Pavlova, Iliana N, Ilieva, Simona I, Gourev, Vassil N, Yordanov, Vasil G, Mishonov, Todor M
Format:	Artikel
Sprache:	eng
Schlagworte:	Gold Laboratories Measurement Operational amplifiers Physics - Physics Education Plancks constant Resistance
Online-Zugang:	Volltext
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Zusammenfassung:	A simple experimental setup for measuring the Planck's constant, using Landauer quantization of the conductance between touching gold wires, is described. It consists of two gold wires with thickness of 0.5 mm and 1.5 cm length, and an operational amplifier. The setup costs less than $30 and can be realized in every teaching laboratory in two weeks. The usage of oscilloscope is required.
ISSN:	2331-8422
DOI:	10.48550/arxiv.1501.05850