Lab Equipment for Teaching Physics

Features

• Complete apparatus

• Compact & stable

• Accurate & Affordable

  
  

Introduction

The LEAI-48 Lorentz Force e/m Apparatus  is a compact teaching apparatus designed to help students explore fundamental principles of electromagnetism through direct observation and measurement. It provides a clear and practical demonstration of the Lorentz force—the force exerted on charged particles, such as electrons, when they move through electric and magnetic fields. This fundamental concept underlies a wide range of physical phenomena and modern technologies, from cathode-ray tubes and oscilloscopes to particle accelerators and mass spectrometers. 

In the experiment, a beam of electrons is generated and accelerated, then subjected to external magnetic and electric fields. By observing the resulting deflection of the electron beam, students can visualize how the Lorentz force governs the motion of charged particles. Through careful measurement of the beam’s deflection, the apparatus can also be used to determine the specific charge (e/m) ratio of the electron, an important constant in physics first measured by J.J. Thomson at the end of the 19th century. 

With its affordable design, robust construction, and easy operation, the LEAI-48 provides an ideal platform for laboratory instruction in electromagnetism. It enables students not only to confirm key theoretical principles but also to gain hands-on experience with experimental techniques and data analysis. 

Please click Experiment Theory and Contents to find more information about this apparatus.

Specifications

Parts List