Hertz effect


Hertz effect

[′hərts i‚fekt] (electronics) Increase in the length of a spark induced across a spark gap when the gap is irradiated with ultraviolet light. (electromagnetism) A dependence of the attenuation of a linearly polarized electromagnetic wave passing through a grating of metal rods on the angle between the electric vector and the rod direction, with the attenuation being a minimum when the two are perpendicular.