Lab Equipment for Teaching Physics

Features

• Compact, accurate, and flexible design

• Adjustable coil spacing

• Easy to operate

• Stable and reliable performance

  
  

Introduction

The Helmholtz coil magnetic field experiment is a key component of general physics teaching. It helps students learn how to measure weak magnetic fields, verify the principle of magnetic field superposition, and plot magnetic field distributions.  

Traditionally, Helmholtz coil magnetic field measurements using indicator-type AC voltmeters tend to yield relatively large errors. This apparatus addresses that limitation by utilizing an integrated Hall sensor as the detector. Hall sensors are compact, sensitive, accurate, and flexible, offering a significant improvement over traditional methods. The output voltage is measured using a DC voltmeter, which enhances measurement accuracy.  

Using this apparatus, students can perform the following experiments:  

1. Measure the magnetic field intensities at points along the axis of a single current-carrying coil.  

2. Measure the magnetic field distribution along the axis of Helmholtz coils with varying coil spacings.  

3. Verify the principle of magnetic field superposition.  

4. Plot the magnetic field distributions of both a single current-carrying coil and Helmholtz coils.  

The instruction manual provides comprehensive experimental configurations, theoretical principles, step-by-step procedures, and examples of experimental results. For additional details, please click Experiment Theory and Contents to explore this apparatus further. 

Parts and Specifications