Electromagnets offer large magnetic fields up to 2.6 T, large spaces for uniform magnetic field, and different field orientations.

Special electromagnets include:

Helmholtz Coils

Helmholtz Coil

Helmholtz Coils generate a uniform magnetic field over a large open space. The magnetic field is typically below 500 Gauss (0.05 T).



Solenoids create uniform magnetic fields inside the coil up to about 2 kG (0.2 T). They can also be used as a sensing coil to detect magnetic fields or magnetic induction.

Special solenoids include:

Permanent Magnets

Permanent magnets

Special arrangements of permanent magnets are used to generate magnetic fields, featuring small sizes and large magnetic fields.

Special permanent magnets include: