gauss

The gauss (G or Gs) is a CGS unit of the magnetic field (magnetic flux density aka magnetic induction). It is defined as one maxwell (unit of magnetic flux) per square centimeter. The tesla is the SI unit for the same physical property, and one gauss is 10^-4 tesla. Examples:

• 0.31-0.58 gauss - Earth's magnetic field at the surface.
• 25 gauss - Earth's magnetic field at the core.
• 50 gauss - typical refrigerator magnet.
• 1 gauss - typical magnetic field at surface of the Sun.
• 4000 gauss - magnetic field around a large sunspot.