The simplest motor production of the second physical circuit diagram

Single chip microcomputer STM32L151CCU6

Mobile phone crystal 3.2*2.5mm 3225 26M (26.000MHZ) 7.5PF 10PPM 20PPM 30PPM

0201 package SLP0603 ESD electrostatic diode 5V one-way ESD

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

Inductance component for high-frequency applications

This small experiment is one of the most fascinating projects in the second physical circuit diagram, and it's easy to gather all the materials needed. It's a great way to explore basic electrical principles in a fun and hands-on manner.

Using just a nail, a battery, a wire, and a button magnet (neodymium magnets from old headphones work best), you can create the world's simplest motor in just 30 seconds. The process is simple but highly effective, making it perfect for both beginners and educators.

Start by attaching the magnet to the nail and placing it on one end of the battery. Either the positive or negative terminal can be used, but the direction of rotation will vary depending on which side you choose. Next, connect the wire to the other end of the battery and gently touch the magnet at the tip of the nail. As soon as the wire makes contact, the nail will begin to spin rapidly. According to measurements, it can reach up to 10,000 revolutions per minute in just 15 seconds!

To improve performance, it’s recommended to place the setup vertically and use a larger magnet. A heavier magnet helps balance the magnetic force, reducing friction between the nail and the battery contact point, allowing smoother and faster rotation.