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Mar 29 at 19:31 comment added my2cts @AmitRai Perhaps this better than a video: en.wikipedia.org/wiki/Magnetic_vector_potential. Also you can find Jackson Classical Electrodynamics online.
Mar 29 at 18:39 comment added SHINU_MADE moving down maybe E field but they both are result of a single phenomenon i.e the wave on surface of water. I am sorry if i didnt understamd your answer but i tried hard
Mar 29 at 18:37 comment added SHINU_MADE i'm trying hard but still i did not 100% understand the math you used, though i found a good yt vdo that explains the math- youtu.be/CbGEJrD-WMA?si=D7Z6VvSpNEcrVQTu the only difference is that she used $\nabla^{2}A$ instead $\Delta A$ in wave eqution. So basically there exists some vector potential in space (A) where $A_{tt} \equiv E$ and $\nabla^{2}A \equiv B$. What i understood is E and B fields varying, is just result of the wave motion of this vector field A. Like waves on surface of water, water molecules going up from surface maybe equivalant to B field and water mol. moving
Mar 29 at 14:06 history edited my2cts CC BY-SA 4.0
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Mar 29 at 13:56 history answered my2cts CC BY-SA 4.0