why earth behave as magnet?
Answers
It is not a permanent magnet, but an electromagnet.
Deep in the Earth, molten metal flows due to heat which causes convection. This flow tends to organize itself into patterns, just like the patterns you’ll see in oil if you heat it in a frying pan.
Such patterns in a flowing conductor tend to create magnetism.
The same idea is used in the “dynamo”, a device that creates both electric current and magnetism from moving conductors.
Commercial dynamos are the source of essentially all of our wall-outlet electricity.
The principle of a dynamo is this: if there is a little magnetic field, then when a conductor moves past it, it causes current to flow.
That current creates a magnetic field which, if the geometry is right, enhances the original field.
So it grows until the force is large enough to modify the pattern and this pattern is the magnetic field of the earth.
Hope this helps.
Answer:
The earth acts like a big magnet that has magnetic poles in the north-south orientation. It maintains its magnetic field, so when a magnetic arrow is stopped voluntarily, it moves until it reaches rest.
Explanation:
- In-depth in the Earth, molten metal streams due to warmth which drives convection. This discharge manages to arrange itself into patterns, just like the patterns you’ll notice in oil if you warm it in a frying pan.
- Such practices in a flowing conductor tend to produce magnetism.
- The exact statement is used in the “dynamo”, an instrument that makes both electric wind and magnetism from moving conductors.
- Commercial dynamos are the basis of essentially all of our wall-outlet electricity.
- The principle of a dynamo is this: if there is a little magnetic field, then when a conductor drives above it, it induces current to flow.
- That current makes a magnetic field which, if the geometry is right, improves the actual field.
- So it increases until the force is extensive and sufficient to change the pattern and this pattern is the magnetic field of the earth.
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