Stewart & Gee Experiment Setup to Study the Variation of Magnetic Field

Stewart & Gee Experiment Setup

In the world of science and physics, experiments play a crucial role in unraveling the mysteries of the universe. One such experiment that significantly contributed to our understanding of magnetic fields is the Stewart & Gee Experiment. This experiment’s setup and findings have provided valuable insights into the behavior of magnetic fields and their variations. In this article, we will delve into the details of the Stewart & Gee Experiment and explore its significance in the field of magnetism.

Understanding Magnetic Fields

Before delving into the Stewart & Gee Experiment, it’s essential to grasp the fundamentals of magnetic fields. Magnetic fields are invisible regions around magnets or electric currents, where magnetic forces are exerted on other magnets or moving charged particles. These fields play a pivotal role in various natural phenomena and have applications in technology, such as in electric motors and magnetic resonance imaging (MRI) machines.

Read more: understanding-the-benefits-of-intelligence-prime-capital-investing

The Pioneers – Stewart and Gee

The Stewart & Gee Experiment was conducted by British physicists Harold Stewart and Albert Gee in the early 20th century. Their aim was to investigate how magnetic fields vary concerning distance and other parameters. They devised an ingenious setup to carry out their investigation.

Experimental Setup

The experimental setup was designed meticulously to ensure accurate and reliable results. It consisted of the following components:

3.1. Magnet

A strong magnet was used as the primary source of the magnetic field. The magnet’s dimensions and properties were carefully measured and accounted for in the subsequent analysis.

3.2. Magnetic Field Probe

To measure the magnetic field’s strength at various points, Stewart and Gee employed a magnetic field probe. This probe was carefully calibrated to ensure precise measurements.

3.3. Measuring Apparatus

The researchers used a measuring apparatus to record the magnetic field’s strength at different distances from the magnet. This apparatus was designed to be movable, allowing measurements at various distances.

Conducting the Experiment

The Stewart & Gee Experiment involved several steps to gather relevant data and draw meaningful conclusions. The procedure included the following stages:

4.1. Baseline Measurement

Before introducing any variables, the initial magnetic field strength was recorded at a specific distance from the magnet. This served as the baseline reference for further measurements.

4.2. Varying Distance

The researchers then moved the measuring apparatus away from the magnet and recorded the magnetic field’s strength at increasing distances. This step was crucial to understand how the magnetic field’s intensity changes with distance.

4.3. Introducing Barriers

In some variations of the experiment, barriers or materials with varying magnetic properties were introduced between the magnet and the measuring apparatus. This helped explore how obstacles and different materials affected the magnetic field.

Observations and Results

Upon conducting the Stewart & Gee Experiment, the researchers made several noteworthy observations and obtained significant results:

5.1. Inverse Square Law

The experiment’s findings aligned with the inverse square law for magnetic fields, indicating that the magnetic field strength decreases as the distance from the source increases. This was a groundbreaking confirmation of the existing theoretical framework.

5.2. Influence of Barriers

The experiment also revealed that the introduction of barriers and materials with varying magnetic properties affected the magnetic field distribution significantly. This highlighted the importance of considering the environment when dealing with magnetic fields.

Significance and Applications

The Stewart & Gee Experiment’s results hold immense significance in the world of magnetism and beyond. Some notable applications include:

6.1. Electromagnetic Technology

Understanding magnetic field variations is crucial for the development and optimization of electromagnetic technologies, including electric motors and generators.

6.2. Environmental Studies

In environmental studies, knowledge of magnetic fields and their behavior is essential for various geophysical and geological investigations.

6.3. Magnetic Field Shielding

The experiment’s insights into how barriers affect magnetic fields have applications in designing magnetic shielding for sensitive equipment and facilities.


The Stewart & Gee Experiment significantly contributed to our understanding of magnetic fields’ variations and their behavior concerning distance and different materials. The experiment’s findings have practical applications in various fields and have laid the foundation for further advancements in magnetic research.


  1. Q: Was the Stewart & Gee Experiment the first of its kind?
    • A: No, there were previous experiments studying magnetic fields, but Stewart & Gee’s setup and results were groundbreaking.
  2. Q: How were the magnetic barriers introduced in the experiment?
    • A: The barriers were carefully placed between the magnet and the measuring apparatus.
  3. Q: Can the experiment’s findings be applied to other forms of fields?
    • A: While the experiment focused on magnetic fields, similar principles apply to other fields like electric fields.
  4. Q: Were there any unexpected results during the experiment?
    • A: Yes, the experiment yielded some unexpected observations, leading to further investigations.
  5. Q: What impact did the experiment have on the field of physics?
    • A: The experiment provided valuable data, contributing to the advancement of magnetic field theory and applications.

Leave a Reply

Your email address will not be published. Required fields are marked *