How to Make a Homopolar Motor

A simple homopolar motor is a great way to visualize the forces and concepts that make more complex DC #motors work. When connected to a battery, an electric current flows through the wire coil producing a magnetic field. The permanent magnet and the coil repel each other and the coil rotates. The insulated section of wire turns off the magnetic field for an instant, and Inertia and gravity carry the coil back to its starting position. The process repeats over and over causing the coil to spin. CAUTION: If the coil isn’t spinning it will heat up. Remove the coil to make adjustments and be sure to supervise children during this activity.

@steamboatstudio A simple homopolar motor is a great way to visualize the forces and concepts that make more complex DC #motors work. When connected to a battery, an electric current flows through the wire coil producing a magnetic field. The permanent magnet and the coil repel each other and the coil rotates. The insulated section of wire turns off the magnetic field for an instant, and Inertia and gravity carry the coil back to its starting position. The process repeats over and over causing the coil to spin. CAUTION: If the coil isn’t spinning it will heat up. Remove the coil to make adjustments and be sure to supervise children during this activity.. #scienceiscool #scienceisfun #homopolarmotor #womeninstem ♬ BROKEN TEETH – Sharkmuffin