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How are electromagnetic fields different from a magnetic field?
Wiki User
∙ 14y ago
Electromagnetic fields can be varying in intensity. A magnet is static.
Wiki User
∙ 14y ago
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What is the difference between Transverse Electrical mode and Transverse Electrical Magnetic mode?
Transverse modes are classified into different types:TE modes (Transverse Electric) no electric field in the direction of propagation.TM modes (Transverse Magnetic) no magnetic field in the direction of propagation.TEM modes (Transverse Electromagnetic) no electric nor magnetic field in the direction of propagation.Hybrid modes nonzero electric and magnetic fields in the direction of propagation.
What is induced by the relative motion between a wire and a magnetic field?
An electromagnetic field.
What is the explanation for the principles of electromagnetic wave?
An electromagnetic wave is properly called a Transverse Electro Magnetic wave, or TEM wave. It consists of an alternating magnetic wave at right angles to an alternating electric wave, with both fields being at right angles to the direction of propagation. The plane of the electric field is defined as the plane of polarization.
Is there a magnetic field around current carrying conductors?
yes.magnetic field present around the conductor.current and magnetic fields are inter related..with current we can produce magnetic field and vice versa
Why are you able to perceive certain electromagnetic fields?
we make use of the observation that a charge (whether magnetic or electric, hence electromagnetic) in a field experiences force. For example, a wire carrying a current builds up a magnetic field around it, and when we place something with a magnetic charge near it (like a compass needle) it pushes the needle to try to line it up with the field (it's definitely not that simple, but it works unless you start doing the calculus and Fourier Transforms). Another neat trick; if we bring a second wire close to the first wire carrying the current, the field pushes on the electrons in the second wire and that tries to make a current in the second wire. This trick works on almost all electromagnetic fields, whether made by current flowing or by something else.
Can electromagnetic wave deflect by electric or magnetic field?
No. An electromagnetic wave IS electric and magnetic fields.
When and magnetic fields both exist it is called an electric magnetic field?
electromagnetic
When and magnetic fields exist its called an electromagnetic field?
A temporary magnetic field created by a flowing electrical current is an electromagnetic field. Stop the current from flowing, it goes away.
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.
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.
Electromagnetic waves are produced by?
an electric field and a magnetic field both oscillating at the same frequency and orthogonal to each other.
Do Electromagnetic waves consist of changing electric and magnetic fields?
Yes, that is the whole idea of an electromagnetic waves. A changing electric field generates a changing magnetic field; a changing magnetic field generates a changing electric field; and the two of them propagate as a wave at the speed of light.
How do the electric and magnetic field of an electromagnetic wave regenerate each other?
No. Current flow creates electromagnetic fields in space. Electromagnetic fields, in turn, can create current flow in conductors. The electric fields do not directly create magnetic fields, nor do magnetic fields directly create electric fields.
What is a field in the electromagnetic spectrum?
There are electric fields and magnetic fields. If those change over time, the changes may propagate at the speed of light - that's called an electromagnetic wave.
What are facts about electromagnetic fields?
An electromagnetic field is a physical field produced by electrically charged objects. The field can be viewed as the combination of an electric field and a magnetic field. The electromagnetic field may be viewed in two distinct ways: a continuous structure or a discrete structure.
What does the letters in electromagnetic mean?
The letters in electromagnetic refer to the two fundamental components: "electro" stands for electric field and "magnetic" stands for magnetic field. These fields interact with each other to propagate energy and information through space in the form of electromagnetic waves.
What electromagnetic waves?
Electromagnetic waves are transverse (unpolarized or polarized) or circularly polarized waves that have some electrical properties and some magnetic properties. An electromagnetic wave consists of changing electric and magnetic fields. The repeated cyclic transfer of energy from the electric field (weakening it) to the magnetic field (strengthening it) until the electric field is gone, then from the magnetic field (weakening it) to the electric field (strengthening it) until the magnetic field is gone every cycle is the process by which electromagnetic waves propagate without requiring a medium (and is described in Maxwell's Equations).
