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kent davidge
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Is it correct to say a varying electric field creates a magnetic field and vice-versa instead of saying that a charge creates such fields?
"As well as" would work better than "instead of":kent davidge said:Is it correct to say a varying electric field creates a magnetic field and vice-versa instead of saying that a charge creates such fields?
Nugatory said:"As well as" would work better than "instead of":
- A varying electrical field will produce a magnetic field.
- A varying magnetic field will produce an electrical field.
- Electrical charges will produce an electrical field.
Google for "Maxwell's equations" if you want to see the real thing.
kent davidge said:But matter is composed of electrical charges , is it not so?
kent davidge said:oh ok. and do neutrinos emit electromagnetic waves?
kent davidge said:Soooo, anyway there must be a "body" which first creates a field. In this case the "body" is the neutrino, no??
kent davidge said:Yes, I'm trying to say that it would be there a source of a electric or a magnetic field, but only for the first field (electric or magnetic) to be created. Then this field changing would create the second. Example: in a magnet we have a magnetic field, created by the charges arrangement. This field changing creates a electric field, as you know.
You recommended me to look at the Maxwell equations... yes, those equations tell us a lot about the behavior of the fields, but what I'm wondering is if you go back in space you'll find a source that is generating at least one of them.
kent davidge said:Ok, so let us imagine our universe with no charges. Would we still have a electric or a magnetic field in some point of the universe?
Wikipedia and others sources of information says that neutrinos have mass.ZapperZ said:It has ZERO mass
kent davidge said:Ok. I think I did not express my thoughts well.Wikipedia and others sources of information says that neutrinos have mass.
kent davidge said:It's interesting how the em field is stated by Wikipedia: "An electromagnetic field (also EM field) is a physical field produced by electrically charged objects".
Electromagnetic waves are a form of energy that are created by the oscillation of electric and magnetic fields. They can travel through a vacuum or through various mediums, such as air or water.
Electric and magnetic fields are closely related in electromagnetic waves. As the electric field changes, it creates a magnetic field, and vice versa. This continuous exchange of energy between the two fields allows the wave to propagate through space.
The speed of electromagnetic waves in a vacuum is approximately 299,792,458 meters per second, or the speed of light. This speed is constant and does not change even if the frequency or wavelength of the wave changes.
Electromagnetic waves can be divided into seven different types based on their frequency and wavelength. These include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. Each type has a different frequency and wavelength and is used for different purposes.
Electromagnetic waves have a wide range of applications in everyday life. Some common uses include radio and television broadcasting, wireless communication, heating food in a microwave, medical imaging, and X-ray imaging. They are also used in devices such as cell phones, Wi-Fi routers, and remote controls.