Categorization of Electromagnetic Field
The structure of electromagnetic field is categorized in two distinct structure:
- Continuous Structure
- Discrete Structure
Continuous Structure
In Continuous structure both the electric and magnetic fields are thought to be produced by the smooth motion of charged particles. The oscillating charges that produce magnetic and electric fields can be observed in a continuous, smooth and wavelike motion. The energy is viewed as being transferred continuously between two electromagnetic field locations.
Continuous and Discrete Electromagnetic field structure
Discrete Structure
In Discrete Structure ,the transfer of electromagnetic energy is better described as being carried in the form of packets called “quanta” with a fixed frequency. Several experiments have revealed that in a particular circumstance the electromagnetic energy flows in a fixed frequency or a more harsh way in case of a photon. Photon is a single quantum of light of a specific frequency or any other form of electromagnetic radiation.
Planck’s relation links the photon energy ‘E’ of a photon to its frequency ‘f’ through an equation mentioned below:
E = hv
where,
- E stand for Photon Energy
- h stands for Planck’s Constant
- v stands for Frequency of Photon
Properties of Electromagnetic Field
In terms of Electrical engineering, Electromagnetic Field plays an important role in describing the motion of electric charge. When an electric charge moves in free space electromagnetic field generated. The electromagnetic field refer to the combination of a magnetic field and an electric field. Electromagnetic field, a property of space caused by the motion of an electric charge. A stationary charge will produce only an electric field in the surrounding space. If the charge is moving, a magnetic field is also produced. Electric and magnetic fields are both components of an electromagnetic field. The electromagnetic field is a combination of electric and magnetic field of force, they are dispersive in nature.
Table of Content
- What is Electromagnetic Field?
- Key Terminologies
- Properties
- Categorization
- Applications
- Conclusion
- FAQs