Publication:
A robust experimental setup for Johnson noise measurement suitable for advanced undergraduate students

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dc.contributor.authorThaned Pruttivarasinen_US
dc.contributor.otherMahidol Universityen_US
dc.contributor.otherCommission on Higher Educationen_US
dc.date.accessioned2019-08-28T07:00:16Z
dc.date.available2019-08-28T07:00:16Z
dc.date.issued2018-01-01en_US
dc.description.abstract© 2018 Institute of Physics Publishing. All rights reserved. We present a durable and inexpensive construction of a Johnson noise experiment suitable for advanced undergraduate students. By measuring the root-mean-square voltage noises for different resistors and taking into account the input capacitance of the amplifier circuit, we demonstrate that the experimental setup is capable of measuring the value of the Boltzmann's constant to be kB = (1.381 ? 0.009) 10-23 J K-1. The setup also allows us to determine the capacitance of an RG-58/U cable to be 80?-?3 pF m-1. We also provide observations from two years of teaching this experiment, containing common student pitfalls. Finally, we discuss possible adjustments of the experiment according to a time constraint.en_US
dc.identifier.citationEuropean Journal of Physics. Vol.39, No.6 (2018)en_US
dc.identifier.doi10.1088/1361-6404/aadc8ben_US
dc.identifier.issn13616404en_US
dc.identifier.issn01430807en_US
dc.identifier.other2-s2.0-85054099903en_US
dc.identifier.urihttps://repository.li.mahidol.ac.th/handle/20.500.14594/47372
dc.rightsMahidol Universityen_US
dc.rights.holderSCOPUSen_US
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85054099903&origin=inwarden_US
dc.subjectPhysics and Astronomyen_US
dc.titleA robust experimental setup for Johnson noise measurement suitable for advanced undergraduate studentsen_US
dc.typeArticleen_US
dspace.entity.typePublication
mu.datasource.scopushttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85054099903&origin=inwarden_US

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