A magnetic field is a force that can attract or repel objects. It is created by the movement of electrons. The strength of the magnetic field depends on the number of moving electrons and their speed.
Magnetic fields are used in many everyday applications, such as in magnets, motors, and generators. They can also be used for medical purposes, such as Magnetic Resonance Imaging (MRI) machines.
The Earth has its own natural magnetic field. This field protects us from harmful radiation from space and helps animals’ navigation systems using the Earth’s poles.
See Magnetic Flux
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