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ElectroMagnetic Waves
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ELECTROMAGNETICWAVES
We are going to start from displacement current Your Maxwell 's equations,
electromagnetic waves and how do they propagate the speeds, their intensity
pressure and the spectrum and also the applications of the electromagnetic waves so
that 's what we 're going to do in today. one lakh means silver play yes very true so
uh let 's begin and i 'm pretty sure we will reach there and guys some of you might
have already probably you might pass out by the time we reach five like so do n't
leave us once you are an elite you are always an elite once Avedan always away then
once a warrior always a warrior remember this line. Sudarshan Reddy explains how
the electric field changes at every point you know as the rays propagate. he. Says the
whole process has been explained in this logical flow moment you change voltage
current changes current changes charge on the capacitor changes charge changes
you will notice that there is an induced or generated magnetic field because of that..
Displacement current is the permittivity of vacuum into d phi by Dt that 's the rate of
change of flux through this section. So you can see field lines are cutting through so
how quickly the flux changes. the law gets modified when there is electric field Also
along with the actual current. the modified ampere 's law is that fine guys everybody
with me give me a thumbs up. let me know in the chat box that you guys have Uh
you know understood the displacement current between the plates of a capacitor will
always be equal to the conduction current always so you do n't even have to do all
these steps in the exam. The trick that you guys will use in exam will be look. At this
and see that the charge is changing. the conduction and displacement current are the
same as the displacement current when the source is come on this one..
These are not powered glasses. These are normal glasses and I can see even without
these. These are just with the bluray filter and it has UE protection and all those
things so that you know all the studio lights which are there and I 'm continuously
seeing the screen Uh, so it will just you know keep my eyes a little bit safe that 's why
okay okay In fact you guys too should use it in case you 're in front of the PC or
lights for a long time. magnetic flux is always zero for a closed surface. For
magnetism. magnetic field lines are always in loops, so you always find loops of
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