Program Type
Undergraduate
Faculty Advisor
Dr. Jessica Young
Document Type
Poster
Location
Face-to-face
Start Date
25-4-2023 1:30 PM
Abstract
The purpose of this experiment is to confirm the e/m ratio and charge of an electron discovered initially by J.J. Thomson. We use an electron beam generated inside an e/m tube and Helmholtz coils that generate a magnetic field which deflects the path of the electrons. The radius of the path can be measured and from there the magnitude of the magnetic field and the charge-to-mass ratio can be found. This experiment was successful in confirming the results found by J.J. Thomson and his cathode ray experiments. The results of this experiment had a 0.5% error with the accepted e/m ratio value of 1.76 x 1011 C/kg.
Keywords: Electron mass, electron charge, e/m ratio, helmholtz coils, magnetic field
Recommended Citation
Freeman, Tori and Reynolds, Quinlin, "Electron Charge to Mass Ratio" (2023). ATU Research Symposium. 40.
https://orc.library.atu.edu/atu_rs/2023/2023/40
Included in
Electron Charge to Mass Ratio
Face-to-face
The purpose of this experiment is to confirm the e/m ratio and charge of an electron discovered initially by J.J. Thomson. We use an electron beam generated inside an e/m tube and Helmholtz coils that generate a magnetic field which deflects the path of the electrons. The radius of the path can be measured and from there the magnitude of the magnetic field and the charge-to-mass ratio can be found. This experiment was successful in confirming the results found by J.J. Thomson and his cathode ray experiments. The results of this experiment had a 0.5% error with the accepted e/m ratio value of 1.76 x 1011 C/kg.
Keywords: Electron mass, electron charge, e/m ratio, helmholtz coils, magnetic field