Determination of E/M and V for Cathode Rays by the Photographic Method (Classic Reprint) - Hardcover

Lloyd Theodore Jones

9780265585399: Determination of E/M and V for Cathode Rays by the Photographic Method (Classic Reprint)

Hardcover

ISBN 10: 0265585392 ISBN 13: 9780265585399

Publisher: Forgotten Books, 2018

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Explore how cathode rays are measured and understood through a photographic method

This nonfiction title explains an experimental approach to determining the velocity of cathode rays and their charge-to-mass ratio by recording deflections in electric and magnetic fields on a photographic plate inside a discharge tube. It shows how researchers use a combination of fields and careful setup to reveal the nature of these particles.

The work walks through the theory and the practical steps of the method, including how deflections are captured on film, how the apparatus is arranged, and how data are derived from the observed spots. It presents the relationship between kinetic energy, deflection, and the measured quantities e/m and v, while noting the conditions necessary for accurate measurements.

How cathode rays are deflected by electric and magnetic fields
How photographic plates are used to record deflections and read values
The equations that relate deflection to velocity and charge-to-mass ratio
Practical details of building and calibrating the experimental setup

Ideal for readers of historical physics methods and early experiments in particle physics, this edition illuminates the process of deriving key constants from observable deflections.

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