Simple do-it-yourself experimental set-up for electron charge \(q_e\) measurement

A simple experiment for the electron charge \(q_e\) measurement is described. The experimental set-up contains standard electronic equipment only and can be built in every high-school lab all around the world with pocket money budget for several days. It is concluded that it is time such a practice...

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Bibliographic Details
Published in:arXiv.org 2018-10
Main Authors: Mishonov, T M, Petkov, E G, Mihailova, N Zh, Stefanov, A A, Dimitrova, I M, Gourev, V N, Serafimov, N S, Danchev, V I, Varonov, A M
Format: Article
Language:English
Subjects:
Colleges & universities
Electronic equipment
Electrons
Photodiodes
Online Access:Get full text
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Summary:A simple experiment for the electron charge \(q_e\) measurement is described. The experimental set-up contains standard electronic equipment only and can be built in every high-school lab all around the world with pocket money budget for several days. It is concluded that it is time such a practice to be included in the regular high-school education. The achieved 13\% accuracy is comparable to the best student university labs. The measurement is based on Schottky noise generated by a photodiode. Using the criterion dollar per accuracy for the electron charge \(q_e\) measurement, this definitely is the world's best educational experiment. An industrial replica can be easily sold across the globe.
ISSN:2331-8422
DOI:10.48550/arxiv.1807.04688