Introduction: Spinning Compass
In the rows below we will show how is possible to spin a magnetic compass using a changing magnetic field.
Step 1: Materials and Operations
1. 5 V dc motor ( inside electric toys )
2. neodymyum magnet sphere 26 mm
3. screw pot neodymium magnet 13 mm ( remove inside magnet )
4. plastic connector ( inside plastic car case)
6. external battery 5.1 V
7. magnetic compass
8. usb cable
Fix the neodymium sphere to metal case between magnetic poles ( N and S )
fix the screw pot metal case through the plastic connector
connect the plastic connector to motor ax
connect the wires to the 5 V dc motor and to usb cable.