- #1
roahan chaudhari
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How magnetism acts on earth?
Magnetism on Earth: Effects & Applications
In summary, the Earth's magnetic field is caused by the movement of molten iron in the outer core of the planet. This magnetic field protects us from harmful solar radiation and plays a crucial role in animal navigation. Magnetism also has numerous practical applications, such as generating electricity and in medical imaging. Changes in Earth's magnetic field can also impact the planet's climate, and it is not constant, as it can reverse its polarity over time. Evidence suggests that Earth has undergone multiple polarity reversals in its history.
- #2
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Welcome
https://www.reference.com/science/earth-act-like-magnet-47fa43e3e5f5e31f
https://www.reference.com/science/earth-act-like-magnet-47fa43e3e5f5e31f
- #3
davenn
Science Advisor
Gold Member
2023 Award
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roahan chaudhari said:
HI Roahan
Welcome to PF
your question is a bit obscure ... I don't understand what you are really asking
can you please elaborate on what you are really askingDave
FAQ: Magnetism on Earth: Effects & Applications
1. What causes magnetism on Earth?
The Earth's magnetic field is caused by the movement of molten iron in the outer core of the planet. This movement, called convection, creates electric currents which in turn generate the magnetic field.
2. How does Earth's magnetic field affect us?
The magnetic field protects us from harmful solar radiation by deflecting charged particles away from the planet. It also plays a crucial role in animal navigation, as many species use it to orient themselves.
3. What are the practical applications of magnetism on Earth?
Magnetism has numerous applications in our daily lives, from generating electricity in power plants to powering motors in various devices. It is also used in medical imaging techniques such as MRI and in data storage devices like hard drives.
4. How does magnetism affect Earth's climate?
Magnetism can impact Earth's climate by influencing the behavior of the solar wind, which can affect the amount of solar radiation that reaches the planet. Changes in Earth's magnetic field over time have also been linked to past climate changes.
5. Is Earth's magnetic field constant?
No, Earth's magnetic field is not constant. It is a dynamic system that changes over time and can even reverse its polarity. Scientists have found evidence of multiple polarity reversals throughout Earth's history.