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

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 perfect hands-on activity for beginners or anyone interested in basic electronics and physics.

To build the simplest motor in the world, you only need a nail, a battery, some wire, and a button magnet—ideally a neodymium magnet from an old headset. With just 30 seconds of effort, you can create a working motor that spins at incredible speeds.

Here’s how to do it: First, attach the magnet to one end of the nail and place it on one pole of the battery. Either the positive or negative side will work, but the direction of rotation will depend on which side you choose. Then, use a piece of wire to connect the other end of the battery to the magnet attached to the nail. Gently touch the wire to the magnet, and watch as the nail begins to spin. According to measurements, the nail can reach up to 10,000 revolutions per minute in just 15 seconds!

For best results, make sure to position the setup vertically and use a larger magnet. A heavier magnet can help balance the magnetic force and reduce friction between the nail and the battery contact point. This simple yet effective project demonstrates the principles of electromagnetism in a fun and interactive way.