0
Becoz its the fact
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Compare and contrast magnetism and gravity?
Gravitational fields and electromagnetic fields are different in that Gravitaional fields are dependent on the masses of objects and the electromagnetic field depends on the charges of objects.
How opposite charges or poles respond?
Opposite poles will attract each other. Look at the related link for a field picture of like charges.
Is it true or false that an electric charge creates a magnetic field?
Opposites attract, like charges repel each other.
Can magnetic fields harm the body?
No. Look at the MRI, which generates enormous magnetic fields. It does not hurt the body. Even if you look at the iron in the blood, that iron is not ferromagnetic because it is distributed extremely finely, and iron needs to be in bulk form to be ferromagnetic.Another Answer:Sometimes. Large rapidly oscillating magnetic fields can cause extensive bodily damage. This damage is exactly similar to electromagnetic radiation damage received by exposure to gamma, x, and ultra violet radiation. Simply put magnetic fields by themselves are relatively harmless, but when used to induce electrical currents or chemical reactions, they can be moderately dangerous.As with practically everything, magnetic fields do have the potential to harm the human body, but it depends on the degree.Consider the extreme example: All materials have the property known as diamagnetism, which is basically caused by atoms creating a repulsive magnetic field to oppose an external magnetic field. Given a strong enough external magnetic field, this effect could rip apart the atoms in the body. This situation is unrealistic, but an example of a harmful effect nonetheless.As far as reality is concerned, there is an ongoing debate about whether magnetic fields can be harmful. There is evidence, but it's hardly conclusive. To learn all about the claims, evidence, studies, and conclusions, see the related link below.
Can astronomers learn the magnetic field of a star?
Light that comes from the sun is polarized by these magnetic fields. A meter can determine the different directions of the light and detect interference. This interference is known as a magnetic field.
What allows matter to look bigger?
Larger magnetic fields.
Compare and contrast magnetism and gravity?
Gravitational fields and electromagnetic fields are different in that Gravitaional fields are dependent on the masses of objects and the electromagnetic field depends on the charges of objects.
How opposite charges or poles respond?
Opposite poles will attract each other. Look at the related link for a field picture of like charges.
What do the fields around two current wires look like?
See the related link Electro Magnetic Fields for a picture.
Only some currents are able to produce magnetic fields?
No. Any current produces a magnetic field. Look at Maxwell's equations.
Is it true or false that an electric charge creates a magnetic field?
Opposites attract, like charges repel each other.
Can magnetic fields harm the body?
No. Look at the MRI, which generates enormous magnetic fields. It does not hurt the body. Even if you look at the iron in the blood, that iron is not ferromagnetic because it is distributed extremely finely, and iron needs to be in bulk form to be ferromagnetic.Another Answer:Sometimes. Large rapidly oscillating magnetic fields can cause extensive bodily damage. This damage is exactly similar to electromagnetic radiation damage received by exposure to gamma, x, and ultra violet radiation. Simply put magnetic fields by themselves are relatively harmless, but when used to induce electrical currents or chemical reactions, they can be moderately dangerous.As with practically everything, magnetic fields do have the potential to harm the human body, but it depends on the degree.Consider the extreme example: All materials have the property known as diamagnetism, which is basically caused by atoms creating a repulsive magnetic field to oppose an external magnetic field. Given a strong enough external magnetic field, this effect could rip apart the atoms in the body. This situation is unrealistic, but an example of a harmful effect nonetheless.As far as reality is concerned, there is an ongoing debate about whether magnetic fields can be harmful. There is evidence, but it's hardly conclusive. To learn all about the claims, evidence, studies, and conclusions, see the related link below.
What has the author Raymond Filip written?
Raymond Filip has written: 'Somebody told me I look like everyman' 'Backscatter' 'Flowers in magnetic fields'
What does a dipole look like in a molecule?
A dipole is a as small piece having separate and opposite electrical charges at the ends.
Do opposite charges attract each other?
If the atoms have opposite charges (positive to negative) they will attract. If the atoms have the same charges (positive to positive or negative to negative) then they will repel. You can look at the Law of Electric Charges to get more information on this.
How does the earths magnetic field help life to be sustained on earth?
the radiation charges or ionizes the air in the upper atmosphere. the charged air conducts and acts like a wire passing thru a magnetic field which shields the earth from other particles and rays look for Van Allen belts
What is magnetic domain?
A magnetic domain is an atom or group of atoms within a material that have some kind of "net" or uniform electron motion. Let's look a bit more closely to see what that means and what the implications are. A fundamental property of any charged particle is that when it is in motion, it creates a magnetic field around its path of travel. Electrons are negatively charged particles, and they create electromagnetic fields about themselves as they move. We know that electrons orbit atomic nuclei, and they create magnetic fields while doing so. Let's keep going from there. If we take one or more atoms or groups of atoms and align them so that they have some kind of uniform electron motion, an overall magnetic field will be present in this region of the material. The individual magnetic fields of some electrons will be added together. The uniform motion of the electrons about atoms in this area creates a magnetic domain. In "regular" iron, these magnetic domains are randomly arranged. But if we align a large enough group of these magnetic domains, we'll have created a magnet.
