A modern Kelvin balance for undergraduate experimentation

Alexandra Rockefeller; Erlend H. Graf

doi:10.1119/1.880535

A modern Kelvin balance for undergraduate experimentation

Alexandra Rockefeller
, Erlend H. Graf

Physics and Astronomy

Stony Brook University
AIL Systems Inc

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

An apparatus suitable for the study of electrostatic forces by physics undergraduates is described. By using an electronic scale to measure the force between the plates of a charged capacitor, students can verify the inverse square exponent of Coulomb's law and check the value of the permittivity of air to an accuracy of 1-2 percent.

Original language	English
Pages (from-to)	292-295
Number of pages	4
Journal	Physics Teacher
Volume	38
Issue number	5
DOIs	https://doi.org/10.1119/1.880535
State	Published - May 2000

Keywords

Coulomb's law
Demonstration
Kelvin balance
Laboratory

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10.1119/1.880535

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title = "A modern Kelvin balance for undergraduate experimentation",

abstract = "An apparatus suitable for the study of electrostatic forces by physics undergraduates is described. By using an electronic scale to measure the force between the plates of a charged capacitor, students can verify the inverse square exponent of Coulomb's law and check the value of the permittivity of air to an accuracy of 1-2 percent.",

keywords = "Coulomb's law, Demonstration, Kelvin balance, Laboratory",

author = "Alexandra Rockefeller and Graf, \{Erlend H.\}",

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year = "2000",

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doi = "10.1119/1.880535",

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AU - Rockefeller, Alexandra

AU - Graf, Erlend H.

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AB - An apparatus suitable for the study of electrostatic forces by physics undergraduates is described. By using an electronic scale to measure the force between the plates of a charged capacitor, students can verify the inverse square exponent of Coulomb's law and check the value of the permittivity of air to an accuracy of 1-2 percent.

KW - Coulomb's law

KW - Demonstration

KW - Kelvin balance

KW - Laboratory

UR - https://www.scopus.com/pages/publications/85006356515

U2 - 10.1119/1.880535

DO - 10.1119/1.880535

M3 - Article

AN - SCOPUS:85006356515

SN - 0031-921X

VL - 38

SP - 292

EP - 295

JO - Physics Teacher

JF - Physics Teacher

IS - 5

ER -

A modern Kelvin balance for undergraduate experimentation

Abstract

Keywords

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