What Constitutes an Electromagnetic Wave?

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Electromagnetic (EM) waves consist of mutually perpendicular electric and magnetic fields that propagate through space. In a vacuum, these fields can be described mathematically using sinusoidal functions, represented as E=E1sin(w(T-X/C)) for the electric field and B=B1sin(w(T-X/C)) for the magnetic field. The discussion emphasizes the importance of understanding the basics of EM waves before seeking help, encouraging self-study through resources like Google and textbooks. It highlights the community's role in assisting those who have foundational knowledge and specific questions. Engaging with the material independently is essential for meaningful discussions in the forum.
justwild
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Can anybody tell me the basics of EM waves...like what constitutes EM wave...what is displaced...what are electric and magnetic field components...?
 
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em waves constitutes both magnetic and electric field... howewever in vacuum a combination of mutually perpendicular electric and magnetic fields is refrd 2 s an emwaves... it components are E=E1SINw(T-X/C) AND B=B1SINW(T-X/C) .whr E and B are sinusoidally varying electri field and magnetic field at the position x at time t. ... hope it hlps!
 
Justwild, Welcome to Physics Forums! Here there are highly educated scientists, engineers and others with tons of experience in science, technology, engineering, and mathematics (STEM) ready to help anyone who is serious about learning.

Now, when you post a question like "Can anybody tell me the basics of EM waves...like what constitutes EM wave...what is displaced...what are electric and magnetic field components...?" you have not shown that you have studied EM waves at all. Would you like someone here to "spoon feed you" some information? Please try using Google, Wikipedia, your teachers, and textbooks to try learning about EM waves first. Then, when you have doubts or questions, post them here. That is what we do here...help others learn.
 

Thread 'Why measure the speed of light in one direction?'

It may be shown from the equations of electromagnetism, by James Clerk Maxwell in the 1860’s, that the speed of light in the vacuum of free space is related to electric permittivity (ϵ) and magnetic permeability (μ) by the equation: c=1/√( μ ϵ ) . This value is a constant for the vacuum of free space and is independent of the motion of the observer. It was this fact, in part, that led Albert Einstein to Special Relativity.
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