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Solution: The easiest way to detect a magnetic field is with a compass. A more obscure way is to shoot a charged particle through the region. If its path arcs, assuming the change of direction can't be attributed to gravity, you probably have a magnetic field in the region.
This capability allows paramagnetic atoms to be attracted to magnetic fields. Diatomic oxygen, \(O_2\) is a good example of paramagnetism (described via molecular orbital theory). The following video shows liquid oxygen attracted into a magnetic field created by a strong magnet:
A magnetic field is created around a current carrying wire due to the movement of electrons. Although magnetic fields are invisible, they can be observed by the force that pulls on magnetic materials, such as iron or the movement of a needle in a plotting compass.
Magnetic field lines are used to represent the strength and direction of a magnetic field. The direction of the magnetic field is shown using arrows. The strength of the magnetic field is shown by the spacing of the magnetic field lines.
The magnetic field strength ranges from approximately 25 to 65 microteslas (0.25 to 0.65 G; by comparison, a strong refrigerator magnet has a field of about 100 G). The intensity of the field is greatest near the poles and weaker near the equator.
24 paź 2019 · The field of molecular magnetism is rapidly evolving towards the use of magnetic molecules and molecule-based magnetic materials in physics-driven and nanotechnology-driven fields, in...
Describe and interpret drawings of magnetic fields around permanent magnets and current-carrying wires. Calculate the magnitude and direction of magnetic force in a magnetic field and the force on a current-carrying wire in a magnetic field.
