In hollow rectangular waveguides, waves named for this quantity have the lowest non-zero cutoff frequency in the one-zero mode. For a point charge moving at a uniform relativistic velocity, this quantity becomes “pancake-shaped” by bunching up in the transverse direction. The density of energy stored by this quantity is given by permittivity (-5[1])over 2 times this quantity squared. (10[1])The component of this quantity parallel to the surface is constant across a boundary. (10[1]-5[1])That derivation (-5[1])uses that (10[1])the flux of this quantity through a surface is proportional only to enclosed (10[1])charge density according to Gauss’s law. (10[2]-5[1])The negative line integral of this quantity gives the scalar potential. For 10 points, what vector quantity is measured in newtons per coulomb and created by electric charges? ■END■ (0[3])