PHYWE Specific charge of electron – e/m

Advantages Neon narrow beam tube for perfect visibility of the electron beam Highly accurate and easy to perform measurements thanks to the built-in fluorescent ladder design Suitable for demonstrations and laboratory classes Large Helmholtz coils to create a large volume of uniform magnetic field. Can be used in many different experiments Observation chamber allows the experiment to be carried out despite daylight Learning Objectives Cathode rays Lorentz force Electron in crossed fields Electron mass Electron charge Principle Electrons are accelerated in an electric field and enter the magnetic field at right angles to the direction of motion. The specific charge of an electron is determined from the accelerating voltage, the magnetic field strength and the radius of the electron orbit. Objectives To determine the specific charge of an electron (e/m0) along the path of an electron beam in crossed electric and magnetic fields of alternating strength.