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Magnetic field
01
磁场
an invisible area around a magnetic object where magnetic forces can attract or repel other objects
例子
Earth's magnetic field influences the direction of compass needles.
The corona's magnetic fields contribute to the formation of solar prominences and eruptions.
The fluctuating electric current induced a magnetic field in the iron core of the transformer.
The magnetic field caused the metal object to pull toward the magnet with a noticeable force.
Magnetic materials, like iron and nickel, can be magnetized by exposure to magnetic fields.
