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Magnetic field is produced by varying electic field. It is a vector quantity. It originates from North pole and passes to south pole and it is a closed loop.
Magnetic forces gives information about charge carriers in a material through Hall effect
answ2. A magnetic field may be a fixed one - it does not need to vary. Consider a permanent magnet.
All magnetic fields are caused by the movement of electrons. No moving electrons - no magnetic field.
The Earth's magnetic field is created by electrical currents, running roughly parallel with the equator. There may be several such paths - we see the net effect.
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Since the astronaut is in outer space how does the heart work without the earth's magnetic field?
There are two parts to this: First, the Earth's magnetic field extends beyond its surface. Second, and more importantly, the heart does not rely on an external magnetic field in order to work.
The area around an object that is affected by the magnetism of that object is the?
A Magnetic Force
How electro magnet work?
ANY electrical current will be surrounded by a magnetic field. In an electromagnet, this magnetic field is often amplified by an iron core.
Would lead tape work as a shield from a magnetic field?
No
Region around a magnet in which magnetic force can act?
Magnetic freild
Why transformernot work in dc?
Transformers work by induction. A changing magnetic field is required.
Would compass work in centre of earth?
no because of the magnetic field.
Would a magnetic compass be suitable to be used for space travel?
No. Magnetic compasses work based on the Earth's mantic field, in space there is no magnetic field for the compasses to work with. A different system, possibly similar to Global Positioning System (GPS) might work, call it the Universal Positioning System. On certain rocky planets it could work, but some planets don't have a magnetic field, like Mars. So a traditional magnetic compass wouldn't work in space, or at least it won't get you where you want to go.
Do compasses work at high speeds when travelling west?
Yes, a compass will work no matter what as long as you are within a magnetic field, such as the magnetic field created by the earth, totally encompassing the earth. The only ways to cause a compass not to work, or give a false reading are to; a) hold a magnet close enough to it so that it picks up that magnet's field instead of the magnetic field of the earth b) go far enough into space that you are not within any magnetic field. This will bring you completely out of the solar system since the sun has a magnetic field that stretches almost to the outer limits of the solar system.
How can you turn off a magnetic field by a current?
If the magnetic field is caused only by a current, you can turn the current off.If you have another magnetic field, for example due to a permanent magnet, with a current you can create a magnetic field that counters the first one. But that will only work in certain regions in space; you can't cancel such a magnetic field everywhere in space.
Does Eris have a magnetic field?
no. Eris does not have a magnetic field
If magnetic compass does not work on moon Why electric motor work on moon?
No because the Moon does not have a magnetic field like the Earth does. The Earth's magnetic field appears to be created by a liquid metalic out core circulating around a solid core. This works like a dynamo which creates the magnetic field around the Earth. The Moon lacks a similar core stucture. This is also the reason why the Monn has no atmosphere.A magnetic compass would not work on the moon, for the moon does not have the magnetic field that the earth has, allowing us to use this device.No, because moon does not have magnetic force like earth
