Magnetismo - Imãs, Campo Magnético e Magnetismo Terrestre
Física Faz Sentido・8 minutes read
Magnets are made of ferromagnetic materials like iron and can attract or repel each other depending on their poles, with the Earth's magnetic field causing needles to align North-South. The magnetic force produces a field measured in Tesla, protecting against solar winds and creating phenomena like the Aurora Borealis.
Insights
- Magnets are composed of ferromagnetic materials like iron, nickel, and cobalt, or metallic alloys, and when brought together, they can either attract or repel each other based on the poles being the same or different.
- The Earth's magnetic field, represented by induction lines and measured in Tesla, protects against solar winds by deflecting electrified particles, causing phenomena like the Aurora Borealis, and is not perfectly aligned with the North-South direction.
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Recent questions
What are magnets made of?
Ferromagnetic materials like iron, nickel, and cobalt.
How does the Earth's magnetic field affect magnetic needles?
Causes them to align with the North-South direction.
What happens when two magnets are brought together?
They can either attract or repel based on their poles.
How is the intensity of a magnetic field measured?
In Tesla.
What does the Earth's magnetic field protect against?
Solar winds and electrified particles.
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