Practice portal › Electromagnetic Waves › Maxwell's Equations and the Production of EM Waves
Asked in NEET 2016 Phase-1 · Sources: the accelerated charge and Hertz
Radiation needs fields that detach from their source and travel on their own.
A stationary charge has only a static electric field; a charge in uniform motion adds a steady
magnetic field, but both fields simply move with the charge.
Acceleration makes the field lines kink, and that kink travels outward at c as an
electromagnetic wave.
So an accelerating charge is the source.
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