NANSLO Remote Lab Activity: Electron Charge Mass (Helmholtz Coil)
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Keywords
NANSLO Remote Lab Activity: Electron Charge Mass (Helmholtz Coil), modified version of Thomson's historic cathode ray tube experiment, magnetic field on beam of electron, charge to mass ratio of an electron, laboratory exercises
Project
Authors
Family, Farnosh
Date Submitted
2014-04
Material Type
Assignment
Secondary Material Type
Institution
Western Interstate Commission for Higher Education
Industry Partner
Health Care
License
CC BY
Funding Source
TAACCCT Round 2
Additional Public Access
Abstract
This NANSLO lab activity is self-contained and can be used in general chemistry and survey of chemistry courses. In this activity, A Helmholtz coil is used to determine charge to mass ratio of electron; a modern day version of the Thomson Cathode Ray experiment. The lab activity includes background information on how JJ Thomson used a Cathode Ray tube to show that when a glass tube with conducting plates on either end is filled with gas and an electric potential difference is imposed across the plates, a current will pass through the gas. The lab activity also includes information on calculating the charge to mass ratio, pre-lab questions, lab exercises, data analysis, and optional advanced post-lab analysis activities.
Industry (NAISC)
Health Care and Social Assistance (62)
Occupation (SOC)
Healthcare Practitioners and Technical Occupations (29-0000)
Instructional Program (CIP)
Health Professions and Related Clinical Sciences (51)
Credit Type
Credential Type
Associate Degree
Bachelors Degree
Bachelors Degree
Educational Level
1st year Community College or equivalent