Timeline for Does the electromagnetic wave have a lateral extension?
Current License: CC BY-SA 4.0
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| Mar 3, 2021 at 21:12 | comment | added | Sandejo | @DescheleSchilder Not quite, if we think of the electromagnetic field as a function $EB:\mathbb{R}^{3+1}\to\mathbb{R}^{3+3}$, we can see that the $x$-direction is in the domain of this function while the $E_x$-direction is in the codomain. While not practical, this function could be graphed as a 6-dimensional surface in a 10-dimensional space, with separate $x$- and $E_x$-axes. Drawing the $x$ component of the electric field along the $x$-axis is just a convention to keep track of how the associated electric force would affect a charge. | |
| Mar 3, 2021 at 17:21 | comment | added | Deschele Schilder | "the blue arrows point not in the $x$-direction, but rather in the $E_x$-direction" Aren't these directions the same? | |
| Mar 3, 2021 at 3:55 | history | answered | Sandejo | CC BY-SA 4.0 |