How to Make the Simplest DC Electric Motor With Magnets

Hello and welcome to the world of the Homopolar Motor Project!

In this exciting endeavor, we combine the fascinating principles of electromagnetism and mechanical engineering to create a simple yet mesmerizing motor. Stemming from the groundbreaking work of physicist Michael Faraday, this unique motor design opens the doors to a world of hands-on experimentation, enabling STEM (Science, Technology, Engineering, and Mathematics) students to gain a profound understanding of essential scientific concepts while having a blast.

The Homopolar Motor Project allows us to explore the principles of engineering design. Experiment with various materials, shapes, and configurations to optimize our motor's performance. This hands-on approach fosters innovation and deepens our understanding of engineering concepts.

Through this Project, we'll unlock the secrets of science in a tangible and exciting way. we'll delve into Faraday's Law of electromagnetic induction, master the right-hand rule, and unravel the intricate relationship between electric currents and magnetic fields.

Supplies

What you need -

• Insulated copper coil
• AA Batteries
• Neodymium Magnets
• A cylindrical object like a marker for coiling

Step 1: Shaping the Wire

• Bend the wire into a loose "U" shape, leaving one end slightly longer than the other.
• The longer end will be used to make contact with the battery terminal, while the shorter end will be the wire that interacts with the magnetic field.

Step 2: Preparing the Wire From Top

• Using sandpaper or emery cloth, strip off the insulation from both ends of the copper wire for about 1 cm.
• Make sure the wire is clean and free from any debris or oxidation.
• Take the longer end of the wire and securely attach it to the positive terminal of the cell battery.
• You can use electrical tape or adhesive putty to hold the wire in place. Make sure the connection is firm and stable.

Step 3: Preparing the Magnet

• Take the neodymium magnet and ensure it is clean and free from any debris or coatings.
• Place the magnet on a flat surface.
• Carefully place the wire on top of the magnet, ensuring that the shorter end is making contact with the surface of the magnet.
• Ensure the wire is not touching the battery terminal or any other motor parts.
• Let the longer end of the wire touch the negative terminal of the battery briefly, creating a connection.

Step 4: Done

• If the wire doesn't spin or spin inconsistently, make sure the wire is making good contact with the magnet's surface. Adjust the position of the wire as needed.
• Check the wire's length and shape. Experiment with different wire lengths and shapes to optimize motor performance.
• Ensure the battery is fully charged, and the wire is clean and properly attached to the battery terminals.
• In conclusion, this project offers an invaluable learning experience for everyone. Hands-on experimentation will give us practical insights into electromagnetism, enhance our problem-solving skills, and develop a deeper understanding of engineering principles.