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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.
Why call light as E M wave which is not having neither electric nor magnet?
Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.
Can you make a magnet without using a magnetic material Explain?
If you are referring to a magnet as an object that possesses a permanent magnetic field, then yes. There are three circumstances where magnetic fields exist, but not as a result of a permanent magnet. 1. Electric current causes a magnetic field. Thus, any wire carrying a current or even a current without a wire (like a lightning bolt) will be surrounded by a magnetic field. Since electric current is made up of moving electric charges, it is actually true than any moving electric charge creates a magnetic field. 2. It is difficult to observe outside of a scientific laboratory, but when there is an electric field that is varying in time, that creates a magnetic field. Though not easy to demonstrate directly, this turns out the physical phenomena the allows the creation of elecrtromagnetic waves, e.g. like the light we see with our eyes. 3. Thirdly, one can cause materials that are not able to work as permanent magnets to act as temporary magnets. This is the basis for electromagnets. A steel or iron core with an electric current running through a coil surrounding the core will produce a magnetic field. If you simply cut off the power source, the electric current will no longer flow through the coil. No electric current, no magnetic field. When a non-permanent magnet is created, the magnetic field it produces is just the same as the magnetic field of a permanent magnet, until the source is removed and the field disappears. All of these matters together are an essential part of the basics of electromagnetism which describes how and why the phenomena work.
There are no auroras on Venus because it?
does not have a magnetic field to trap solar wind particles and create the light display seen in auroras on Earth.
Why can't visible light move a compass needle?
Visible light can't move a compass needle because light consists of electromagnetic waves, while a compass needle is affected by the Earth's magnetic field. The magnetic field from visible light is not strong enough to influence the orientation of a compass needle.
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.
How is light a combination of electric and magnetic fields?
Light is an electromagnetic wave composed of oscillating electric and magnetic fields. When an electric field changes, it generates a magnetic field and vice versa. These fields continuously interact and propagate through space, forming what we perceive as light.
What are the two components of light wave?
The electric and the magnetic field components.
Is light created by vibrations in electric and magnetic fields?
Yes, light is created by vibrations in electromagnetic fields. When an electric field oscillates, it generates a corresponding magnetic field, and vice versa. These oscillating electric and magnetic fields together form electromagnetic waves, which we perceive as light.
Why light is characterized by electric vector although it also possesses the magnetic vector?
Light is characterized by its electric vector because its interactions with matter are primarily through the electric field. The magnetic field of light comes into play when dealing with certain materials or under specific conditions, such as in radio waves or at high frequencies, but in general, the electric field of light is more prominent in its interactions with matter.
What does a light beam carry besides energy?
Electric and magnetic field components
How is a light wave created?
A light wave is created when an electric field causes a displacement of charged particles, such as electrons, which in turn generates a magnetic field. The interaction between the electric and magnetic fields propagates as a wave through space, resulting in the emission of light.
What are the three main effects of an electric current?
The main effects of an electric current are the generation of heat (thermal effect), the production of light (light effect), and the creation of a magnetic field (magnetic effect).
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.
Why call light as E M wave which is not having neither electric nor magnet?
Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.
How do you calculate the amplitude of a light wave?
The amplitude of a light wave is the maximum displacement of the electric or magnetic field from its equilibrium position. It can be calculated by measuring the maximum value of the field intensity at a specific point in space. This value is usually expressed in terms of volts per meter for electric field or teslas for magnetic field.
What is the formula for calculating the amplitude of an electric field?
The formula for calculating the amplitude of an electric field is given by E cB, where E represents the electric field amplitude, c is the speed of light in a vacuum, and B is the magnetic field amplitude.
