"Virtual Measurement of e/m Lab" Courseware

Virtual Measurement of e/m

This interactive module follows J.J. Thomson’s landmark experiment to measure the charge-to-mass ratio of the electron, e/m. These materials are designed to be flexible and easily modified to accommodate a variety of teaching and learning methods. The MATLAB app is a virtual reproduction of the e/m apparatus and allows students to conduct the experiment virtually.

Learning Goals

• Explain the forces present in the experimental apparatus
• Derive the physical relationships required to compute the e/m ratio
• Estimate the value of e/m
• Compute the experimental error and discuss its sources
• Relate the underlying theory to mass spectrometry

Have any questions or feedback? Contact the MathWorks online teaching team.