A magnetic field is an invisible force field that is created by moving electric charges. It is represented by lines of force that point in the direction of the field's strength and can be detected using a compass or other magnetic instruments.
A magnetic field is created by moving electric charges. This can occur naturally in certain materials, such as iron, or it can be artificially induced by passing an electric current through a wire or coil.
A magnetic field has two main properties: strength and direction. The strength of a magnetic field is measured in units called gauss or tesla. The direction of a magnetic field is determined by the orientation of the lines of force, which always point from the north pole to the south pole.
When two magnetic fields come in contact, they can either attract or repel each other depending on the orientation of their poles. Like poles (north to north or south to south) will repel each other, while opposite poles (north to south or south to north) will attract each other.
Magnetic fields have many practical applications in our daily lives. Some common examples include: powering electric motors, generating electricity in power plants, guiding compasses, and storing data on hard drives. They are also used in medical imaging technologies, such as MRI machines, and in various industrial processes.