ELECTRO MAGNETIC WAVE
Summary:
The term electromagnetism could also be a blanket term for all possible kinds of interactions which can exist between electric charges.
Electricity and magnetism are related phenomena, however when…
charges are at rest the phenomena are generally described as electric or electrostatic
The source of all electric phenomena is electrical charge.
charges are in motion and thus the magnitude of this is constant the phenomena are generally described as magnetic or magnetostatic
The source of all magnetic phenomena is moving charge .
charges are in motion and thus the magnitude of this is varying with time the phenomena are generally described as electromagnetic
The source of all electromagnetic phenomena is accelerating charge .
Forces
Charged objects exert electric forces on one another (sometimes called electrostatic forces).
This is the principle behind static cling and why electrons are bound to the nucleus of an atom.
Magnets exert magnetic forces on one another .
This is the principle behind compasses and refrigerator magnets.
Magnets exert magnetic forces on moving charges.
This is the principle behind electric motors and electric generators.
Fields
Electric charges are surrounded by an electrical field.
Moving electric charges are also surrounded by a magnetic flux .
Electric current flowing through a coil of wire is an electromagnet.
The spin of the electron makes it behave kind of a really small magnet.
Electric currents within the molten outer core of the planet make it behave kind of an enormous magnet.
Time varying fields
A changing field will produce a magnetic flux .
A changing magnetic flux will produce an electrical field.
Waves
An electromagnetic wave is any disturbance within the electrical and magnetic fields that propagates.
All electromagnetic waves propagate at the speed of sunshine during a vacuum.
The seemingly disparate phenomena of electricity, magnetism, and optics are all related aspects of the larger phenomenon of electromagnetism.
This last statement was predicted mathematically before it had been determined experimentally.
Electromagnetic waves can have any wavelength or frequency.
Light is an electromagnetic wave that's visible to the quality human eye.
There are electromagnetic waves apart from light.
The full range of frequencies or wavelengths of electromagnetic waves is known as the spectrum .
The currently prescribed , major named bands of the spectrum are, so as of accelerating frequency…
radio waves
microwaves
infrared (ir)
light (sometimes specifically called visible light)
ultraviolet (uv)
x-rays
gamma rays (γ)
Where one band ends and another begins depends on custom, language, culture, law, history, and a couple of science.
Smaller divisions of the spectrum are possible to whatever degree suits a selected technology or field of study.
The term electromagnetism could also be a blanket term for all possible kinds of interactions which can exist between electric charges.
Electricity and magnetism are related phenomena, however when…
charges are at rest the phenomena are generally described as electric or electrostatic
The source of all electric phenomena is electrical charge.
charges are in motion and thus the magnitude of this is constant the phenomena are generally described as magnetic or magnetostatic
The source of all magnetic phenomena is moving charge .
charges are in motion and thus the magnitude of this is varying with time the phenomena are generally described as electromagnetic
The source of all electromagnetic phenomena is accelerating charge .
Forces
Charged objects exert electric forces on one another (sometimes called electrostatic forces).
This is the principle behind static cling and why electrons are bound to the nucleus of an atom.
Magnets exert magnetic forces on one another .
This is the principle behind compasses and refrigerator magnets.
Magnets exert magnetic forces on moving charges.
This is the principle behind electric motors and electric generators.
Fields
Electric charges are surrounded by an electrical field.
Moving electric charges are also surrounded by a magnetic flux .
Electric current flowing through a coil of wire is an electromagnet.
The spin of the electron makes it behave kind of a really small magnet.
Electric currents within the molten outer core of the planet make it behave kind of an enormous magnet.
Time varying fields
A changing field will produce a magnetic flux .
A changing magnetic flux will produce an electrical field.
Waves
An electromagnetic wave is any disturbance within the electrical and magnetic fields that propagates.
All electromagnetic waves propagate at the speed of sunshine during a vacuum.
The seemingly disparate phenomena of electricity, magnetism, and optics are all related aspects of the larger phenomenon of electromagnetism.
This last statement was predicted mathematically before it had been determined experimentally.
Electromagnetic waves can have any wavelength or frequency.
Light is an electromagnetic wave that's visible to the quality human eye.
There are electromagnetic waves apart from light.
The full range of frequencies or wavelengths of electromagnetic waves is known as the spectrum .
The currently prescribed , major named bands of the spectrum are, so as of accelerating frequency…
radio waves
microwaves
infrared (ir)
light (sometimes specifically called visible light)
ultraviolet (uv)
x-rays
gamma rays (γ)
Where one band ends and another begins depends on custom, language, culture, law, history, and a couple of science.
Smaller divisions of the spectrum are possible to whatever degree suits a selected technology or field of study.
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