Table of Contents
- 1 How is electromagnetic related to the special theory of relativity?
- 2 What is the relation between electric field intensity and magnetic field intensity?
- 3 How are electromagnets related to special theory of relativity in Quora?
- 4 What are the similarities between electricity and magnetism How are they different?
- 5 What is the relationship between the electric field E and the electric potential V between the plates of the capacitors?
- 6 How does the speacial theory of relativity work?
- 7 Is the same field electric or magnetic for different observers?
The theory of special relativity plays an important role in the modern theory of classical electromagnetism. It gives formulas for how electromagnetic objects, in particular the electric and magnetic fields, are altered under a Lorentz transformation from one inertial frame of reference to another.
What is the similarity between magnetic field and electric field?
Similarities between magnetic fields and electric fields: Electric fields are produced by two kinds of charges, positive and negative. Magnetic fields are associated with two magnetic poles, north and south, although they are also produced by charges (but moving charges). Like poles repel; unlike poles attract.
What is the relation between electric field intensity and magnetic field intensity?
The electric displacement D and magnetic intensity H are related to the electric field and magnetic flux density by the constitutive relations: D = ε E, B = µ H.
What is the difference between a magnetic field and an electromagnetic field?
The area around a magnet within which magnetic force is exerted, is called a magnetic field. It is produced by moving electric charges. The presence and strength of a magnetic field is denoted by “magnetic flux lines”. Therefore, they are inter-related in a field called the electromagnetic field.
Special relativity makes electromagnets work exactly the way that is shown in your YouTube video. But electrons travel in a wire at near the speed of light, and electrons in a electromagnet are all “rotating” the same way at near the speed of light. This is how special relativity becomes a factor.
How are electric field and magnetic field different from each other?
The electric field is actually the force per unit charge experienced by a non moving point charge at any given location within the field, whereas the magnetic field is detected by the force it exerts on other magnetic particles and moving electric charges.
What are the similarities between electricity and magnetism How are they different?
3) Electricity and magnetism are essentially two aspects of the same thing, because a changing electric field creates a magnetic field, and a changing magnetic field creates an electric field. (This is why physicists usually refer to “electromagnetism” or “electromagnetic” forces together, rather than separately.)
Are magnetic fields just electric fields?
A magnetic field is really just an electric field in relative motion. So if, for instance, an electron is just sitting there, and you are not moving relative to it, all that you measure is an electric field. But if the electron flies past you, then you experience a magnetic field due to the moving charge.
What is the relationship between the electric field E and the electric potential V between the plates of the capacitors?
The relationship between V and E for parallel conducting plates is E=Vd E = V d .
How are electric and magnetic fields related to special relativity?
Electric and magnetic fields obey a set of physical laws called Maxwell’s equations. Einstein’s theory of Special Relativity describes how space and time change depending on the choice of inertial reference frame. It turns out that Special Relativity is automatically contained in Maxwell’s equations.
How does the speacial theory of relativity work?
Talking formally, the speacial theory of relativity combines the electric and magnetic field into a ran-2 tensor, called electromagnetic tensor. This component gets mixed due to change in reference to observation. In modern physics, the electromagnetic field is understood to be not a classical field, rather a quantum field.
Why do magnetic fields exist in inertial systems?
Special relativity makes the existence of magnetic fields an inevitable consequence of the existence of electric fields. In the inertial system B moving relatively to the inertial system A, purely electric fields from A will look like a combination of electric and magnetic fields in B.
Is the same field electric or magnetic for different observers?
The Same field may be electric or magnetic or mixture for different observers. Talking formally, the speacial theory of relativity combines the electric and magnetic field into a ran-2 tensor, called electromagnetic tensor. This component gets mixed due to change in reference to observation.