That might erase or damage the data on the diskette.
A magnetic field has no discernable effect on your body. All of us are constantly exposed to a magnetic field, that of the earth itself, we cannot avoid it.
The list of choices submitted with the question containsno correct description of magnetic field lines.
To magnetize hematite, you can expose it to a strong magnetic field or rub it with a magnet in the same direction multiple times. This process aligns the internal magnetic domains of the hematite, making it magnetic.
The best procedure to create a permanent magnet is to expose a ferromagnetic material to a strong magnetic field for an extended period of time, aligning the magnetic domains within the material to create a permanent magnetic field.
If the core of the Earth were to cool down significantly, it would lead to a slowdown in Earth's magnetic field generation and potentially weaken or disrupt the magnetic field. This could expose the Earth to more harmful solar radiation, affect navigation systems relying on the magnetic field, and impact wildlife that relies on magnetic orientation for migration.
A Magnetic Force
The disc is a thin plastic base material coated with iron oxide. This oxide is a ferromagnetic material, meaning that if you expose it to a magnetic field it is permanently magnetized by the field.
To permanently magnetize something, you can expose it to a strong magnetic field or stroke it repeatedly with a magnet in the same direction. This aligns the magnetic domains within the material, creating a permanent magnet.
The Earth's magnetic field acts as a shield, deflecting harmful solar wind and cosmic rays that could otherwise strip away the atmosphere and expose life on Earth to damaging radiation. This protective magnetic field helps to preserve the atmosphere and enable life to thrive on the planet's surface.
To magnetize a piece of metal effectively, you can rub a magnet along the metal in one direction multiple times. This process aligns the magnetic domains within the metal, creating a magnetic field. Alternatively, you can expose the metal to a strong magnetic field for a period of time to induce magnetization.
Magnetic freild
The list of choices submitted with the question containsno correct description of magnetic field lines.