0
Not a constant electric current but a changing one will generate electromagnetic waves.
First: If you have a lone electron, and it is accelerated in any way, it will send off an electromagnetic wave. This is because a changing electric field generates a magnetic field.
It is also true that changing magnetic field will generate an electric field. This is the reason that if you have an electric current, which is generating a magnetic field, and you change the current you generate an electromagnetic wave. To generate a continuous sinusoidal electromagnetic wave you continuously change the current sinusoidally.
Yes, an electric current can generate an electromagnetic wave. When an electric current flows through a conductor, it creates a magnetic field around the conductor. This changing magnetic field then generates an electromagnetic wave, which consists of oscillating electric and magnetic fields propagating through space.
Add your answer:
Earn +20 pts
What starts the vibration of the electric and magnetic fields in an electromagnetic wave?
The vibration of the electric and magnetic fields in an electromagnetic wave is initiated by a changing electric current or an accelerating electric charge. When these occur, the varying electric and magnetic fields interact and propagate through space in the form of an electromagnetic wave.
Is it possible to transmit electricity as electromagnetic waves?
Well, when you transmit something as an electromagnetic wave, it is no longer an electric current, since an electromagnetic wave doesn't involve movement of charges. However, you can convert electrical energy into an electromagnetic wave, transfer that, and then convert it back to an electric current at the receiving end.
Is an electric field associated with an electromagnetic wave constant in time?
Yes, in a vacuum an electromagnetic wave has a constant electric field amplitude. This field oscillates in time as the wave propagates.
What type of wave is EM radiation?
Electromagnetic radiation consists of waves that are composed of oscillating electric and magnetic fields and do not require a medium to propagate. This type of wave is considered a transverse wave, with electric and magnetic fields perpendicular to the direction of propagation.
What object is electromagnetic?
Light is an electromagnetic wave that consists of oscillating electric and magnetic fields.
What starts the vibration of the electric and magnetic fields in an electromagnetic wave?
The vibration of the electric and magnetic fields in an electromagnetic wave is initiated by a changing electric current or an accelerating electric charge. When these occur, the varying electric and magnetic fields interact and propagate through space in the form of an electromagnetic wave.
How do the electric and magnetic field of an electromagnetic wave regenerate each other?
In an electromagnetic wave, the changing electric field creates a magnetic field, and the changing magnetic field in turn regenerates the electric field. This process continues as the wave propagates through space, leading to the self-sustaining nature of electromagnetic waves.
What type of wave is radiation?
EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.EM radiation is short for electromagnetic radiation. It is a wave in the electric and magnetic fields.
Is it possible to transmit electricity as electromagnetic waves?
Well, when you transmit something as an electromagnetic wave, it is no longer an electric current, since an electromagnetic wave doesn't involve movement of charges. However, you can convert electrical energy into an electromagnetic wave, transfer that, and then convert it back to an electric current at the receiving end.
Is an electric field associated with an electromagnetic wave constant in time?
Yes, in a vacuum an electromagnetic wave has a constant electric field amplitude. This field oscillates in time as the wave propagates.
What type of wave is EM radiation?
Electromagnetic radiation consists of waves that are composed of oscillating electric and magnetic fields and do not require a medium to propagate. This type of wave is considered a transverse wave, with electric and magnetic fields perpendicular to the direction of propagation.
In an electromagnetic wave the oscillating electric and magnetic fields are what?
In an electromagnetic wave, the electric and magnetic fields are perpendicular to each other and are in phase.
Tell how you know if a wave is electromagnetic in character?
A wave is electromagnetic in character if the wave is produced by the acceleration of an electric charge. Another indication is a wave is electromagnetic if it is propagated by the periodic variation of intensities of, usually, perpendicular electric and magnetic fields.
Does an electromagnetic wave have an electric field?
Yes
A wave that contains a combination of electric and magnetic forces?
an electromagnetic wave
What is the source of an electromagnetic wave?
Accelerated electric charge is the source of electromagnetic waves.
How do electromagnet waves that have electric and magnetic fields travel?
We understand that electromagnetic waves have both an electric and a magnetic component. Each component is a wave, and each wave is perpendicular to the other and is in phase. perpendicular to the direction of the wave
