E/M BY HELICAL METHOD | Determination of e/m of Electron Using Helical Method Apparatus

Description

The E/M by Helical Method Apparatus is an advanced physics laboratory instrument used to determine the specific charge (e/m) of an electron by studying the helical motion of electrons in a uniform magnetic field. This method provides a clear and direct visualization of electron trajectory, making it an essential experiment in modern physics education.
Ideal for advanced physics laboratories, engineering colleges, universities, and research training centers.
✅ Key Features
🌀 Helical Motion Principle
Determines e/m by observing electron motion along a helical path
Demonstrates circular and axial velocity components of electrons
Excellent visualization of charged particle dynamics
🔋 High-Quality Electron Beam Tube
Long-life vacuum tube with sharp, well-defined electron beam
Fluorescent screen for easy observation of helical path
Stable beam intensity for accurate measurements
🧲 Uniform Magnetic Field with Helmholtz Coils
Precisely designed Helmholtz coil system
Produces highly uniform magnetic field
Adjustable magnetic field strength via regulated current
📏 Accurate Measurement System
Fine-scale measurement of beam diameter and pitch
Regulated power supplies for beam acceleration and coils
High-precision meters for voltage and current readings
🧱 Educational Trainer Construction
Clear front-panel layout with circuit diagram
Well-labeled controls and terminals
Strong enclosure suitable for student handling
🛡 Safety & Operational Stability
Student-safe voltage levels
Electrical and thermal protection
Reliable operation for long practical sessions
📘 Typical Applications
Determination of e/m of electron using helical method
Study of motion of charged particles in magnetic fields
Advanced electromagnetism and modern physics experiments
B.Sc., M.Sc., and engineering physics practical courses
💡 Why Choose This Apparatus?
Direct and visually intuitive e/m measurement method
High accuracy and repeatability
Excellent teaching aid for modern physics concepts
Robust design ideal for academic institutions