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How is the electric field portion of an EM wave used? The magnetic field part is used to induce a signal in conductors, and are used in radios. I have researched but I can't seem to find there being any devices that use the electric field portion of an EM wave.

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    $\begingroup$ electric dipole antenna $\endgroup$
    – hyportnex
    Commented Aug 7, 2016 at 19:14
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    $\begingroup$ It's the electric part of the wave that is used in most detectors (including the most famous of all, your eye), because the magnetic force is weaker than the electric by a factor of $v/c$, which is typically small. $\endgroup$
    – Javier
    Commented Aug 7, 2016 at 19:31
  • $\begingroup$ @Javier Thanks, now I got my eye on the game. :) $\endgroup$
    – Sigma6RPU
    Commented Aug 7, 2016 at 19:36

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