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Homework Statement
A magnetic field is made up of
A) positive and negative charges.
B) magnetic domains.
C) flux lines.
D) magnetic poles.
A magnetic field is made up of invisible lines of force that surround a magnet or an electric current. These lines of force are called magnetic field lines.
A magnetic field is created when charged particles, such as electrons, move or spin. This movement creates a force that produces a magnetic field.
Any material that contains atoms with unpaired electrons can create a magnetic field. These materials are known as ferromagnetic materials, and include iron, cobalt, and nickel.
Yes, magnetic fields can be shielded or blocked by certain materials, such as mu-metal or superconductors. These materials can redirect the magnetic field lines, effectively shielding the area from the field.
The units of measurement for magnetic fields are teslas (T) or gauss (G). One tesla is equal to 10,000 gauss.