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An electromagnetic field is caused by electric charges in motion. When charged particles move, they create a type of energy called electromagnetic radiation, which generates an electromagnetic field. This field consists of both electric and magnetic components, propagating outwards from the moving charges.
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How does a changing magnetic field produce an electric field according to electromagnetic theory?
According to electromagnetic theory, a changing magnetic field induces an electric field. This phenomenon is known as electromagnetic induction, where the changing magnetic field creates a force that causes electrons to move, generating an electric current.
What causes the electrons to move in the electromagnetic induction animation?
In the electromagnetic induction animation, the movement of electrons is caused by a changing magnetic field passing through a conductor. This changing magnetic field induces a voltage in the conductor, which in turn creates an electric current that causes the electrons to move.
What causes a electromagnetic wave?
An electromagnetic wave is caused by the vibration of electric and magnetic fields propagating through space. When an electric charge accelerates, it creates a changing electric field, which in turn generates a magnetic field. The changing magnetic field then creates a changing electric field, and this cyclical process results in the formation of an electromagnetic wave.
How does a rotating dipole radiation affect the electromagnetic field around it?
A rotating dipole radiation causes the electromagnetic field around it to change direction and strength periodically. This results in the emission of electromagnetic waves in all directions, similar to a spinning top creating ripples in water.
Are electromagnetic waves characterized by rarefactions and compressions?
No they are caused by changes in magnetic and electrical fields. When a magnetic field changes it causes an electric field that is perpendicular to it. And vice versa a changing electric field causes a perpendicular magnetic field. These changing fields propagate outwards at the speed of light and are what is meant by an electromagnetic wave.
What does electricity cause?
electricity causes an electromagnetic field, also radiation.
How does a changing magnetic field produce an electric field according to electromagnetic theory?
According to electromagnetic theory, a changing magnetic field induces an electric field. This phenomenon is known as electromagnetic induction, where the changing magnetic field creates a force that causes electrons to move, generating an electric current.
What causes the electrons to move in the electromagnetic induction animation?
In the electromagnetic induction animation, the movement of electrons is caused by a changing magnetic field passing through a conductor. This changing magnetic field induces a voltage in the conductor, which in turn creates an electric current that causes the electrons to move.
What causes a electromagnetic wave?
An electromagnetic wave is caused by the vibration of electric and magnetic fields propagating through space. When an electric charge accelerates, it creates a changing electric field, which in turn generates a magnetic field. The changing magnetic field then creates a changing electric field, and this cyclical process results in the formation of an electromagnetic wave.
How does a rotating dipole radiation affect the electromagnetic field around it?
A rotating dipole radiation causes the electromagnetic field around it to change direction and strength periodically. This results in the emission of electromagnetic waves in all directions, similar to a spinning top creating ripples in water.
What causes atom to move constantly?
The electrons in the atoms are in an electromagnetic field. This field determines the velocity, length, and shape of orbit in which they spin around the nucleus.
What is charge?
Charge is a physical property that causes matter to experience a force within an electromagnetic field.
How is earth a magnetic field?
The earth's magnetic field is caused by the fact that the earth has a moltern iron core. When moltern iron spins it causes an electric field. This causes an electromagnetic field. Some planets are too large or too small for the iron in their core to be molten.
Can an electromagnetic wave ever move?
This question is slightly back to front. It should perhaps read - can an electromagnetic wave ever not move ? The answer to this question would be no. Motion is absolutely central to the very existence of an electromagnetic wave. If the voltage between two conductors varies up and down, the electric field between them does the same. This changing electric field causes a changing magnetic field. The changing magnetic field causes a changing electric field, and so on ad infinitum. The net result of all this is an electromagnetic wave which propagates outwards at the speed of light.* If the wave were somehow prevented from moving it would cease to exist. * not really surprising, because light is itself an electromagnetic wave.
Why is light in the electromagnetic spectrum Is light a type of electromagnetic radiation But how does that work Light is not magnetic or is it?
Part of the electromagnetic spectrum can be detected by eye, and we call that bit "light". The thing about electromagnetic radiation is that a varying magnetic field causes a (varying) electric field (that's how power stations make electric current) and a varying electric field causes a (varying) magnetic field. So electromagnetic radiation is what you get when a varying electric field creates a varying magnetic field which in turn contributes the varying electric field. The whole thing then appears as bundled varying electric and magnetic field wave system which propagates at the velocity of light, That is why it is called electromagnetic. There are no magnetic poles or electric charges in it, and it can travel through a vacuum.
Are electromagnetic waves characterized by rarefactions and compressions?
No they are caused by changes in magnetic and electrical fields. When a magnetic field changes it causes an electric field that is perpendicular to it. And vice versa a changing electric field causes a perpendicular magnetic field. These changing fields propagate outwards at the speed of light and are what is meant by an electromagnetic wave.
When electric and magnetic fields both exist it is called an?
Not really. You could have both an electric field and a magnetic field occupying the same space at the same time but they wouldn't 'make the definition' of electromagnetic until they began to fluxuate in phase at a harmonized frequency.
