The Electromagnetic Wave of a Coil

In summary, the conversation discusses the behavior of electromagnetic waves in a coil and how it is affected by factors such as current, diameter, and number of turns. It is mentioned that according to classical theory, the wave spreads without limit but weakens with distance, and suggests researching Biot and Savarts law for further understanding.
  • #1
SMT88
3
0
Hello everybody, First excuse me for my English.

Could someone please explain how far the electromagnetic wave of a coil travels?
Does it depend on the current flowing in the coil? The coil diameter? The coil's number of turns?
What will happen to the waves if we increase the current of a coil by two times?

Thanks in advance,
SMT
 
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  • #2
Nobody answers?
 
  • #3
According to classical theory it spreads without limit but weakens with distance.Try googling Biot and Savarts law.
 
  • #4
Dadface said:
According to classical theory it spreads without limit but weakens with distance.Try googling Biot and Savarts law.

Thank you very much!
 

1. What is an electromagnetic wave?

An electromagnetic wave is a type of energy that is created when an electric field and a magnetic field oscillate together. It is also known as a transverse wave, meaning that the energy is transferred perpendicular to the direction of the wave's movement.

2. How is an electromagnetic wave produced in a coil?

An electromagnetic wave is produced in a coil when an alternating current flows through it. As the current changes direction, it creates a changing magnetic field which in turn generates an electric field. These two fields oscillate together, creating an electromagnetic wave.

3. What is the relationship between the electromagnetic wave and the coil's properties?

The properties of a coil, such as its size, shape, and number of turns, affect the strength and frequency of the electromagnetic wave it produces. A larger coil with more turns will produce a stronger wave at a lower frequency, while a smaller coil with fewer turns will produce a weaker wave at a higher frequency.

4. Can an electromagnetic wave be detected outside of the coil?

Yes, an electromagnetic wave can be detected outside of the coil. As it travels through space, it creates an oscillating electric and magnetic field that can be detected by other electronic devices, such as antennas or receivers.

5. What are some practical applications of the electromagnetic wave produced by a coil?

The electromagnetic wave produced by a coil has many practical applications, such as in wireless communication, where it is used to transmit signals between devices. It is also used in induction heating, where the wave's energy is converted into heat for cooking or welding. Additionally, electromagnetic waves are used in medical imaging, such as MRI machines, to produce detailed images of the body's internal structures.

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