Causes of Fluctuating Magnetic Fields
- Due to the movement of magnetic material (cars, elevators, trains, etc.)
- Power noise (50 or 60 Hz)
- Influence of peripheral devices
Helmholtz Coil
- A coil connected in a series with the same number of turns in parallel arrangement.
- When a current passes, a magnetic field is generated in the axial direction of the coil.





