Properties of EM Waves
- EM waves are transverse in nature. it means that oscillating electric field and oscillating magnetic field in a particular plane which is perpendicular to the direction of propagation of wave.
- EM waves are non-mechanical in nature it means that they did not require any medium for propagation.
- Here the magnetic field and electric field are right angles to each other and perpendicular to the propagation of the wave.
- They travel with speed of light and it is given by 3 x 108 m.s-1.
- The product of wavelength and frequency is equal to the c (constant) which is speed of light. it can be represented by :
c= f λ
What is Electromagnetic Field ?
As we all know, a field is nothing but a physical quantity that’s assigned to every point in space. The electromagnetic field is a combination of electrical and magnetic phenomena that exist in space and it is also created by the motion of charges (electric field) which creates a magnetic field. In simple terminology electromagnetic field is a wave that transports electromagnetic energy with the speed of light. It is a scalar quantity that has only a magnitude not direction associated with it. It is a field described by classical thermodynamics. Maxwell’s law and Lorentz’s force law describe how electric charges constitute current and interact with a magnetic field. Here the important point to catch is without electromagnetic waves we can’t generate electromagnetic fields so both these terms are dependent on each other.
Table of Content
- Electromagnetic Field
- Electromagnetic Waves
- Equations
- Properties
- Categorization
- Mathematical Representation
- Properties
- Applications
- Electric Field (E) Vs Magnetic Field (B)
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