The power radiated by an accelerated charge. It is derived in electric dipole radiation as

in cgs,where q is the charge, a(t) is the acceleration, and c is the speed of light. In MKS,

where
is the permittivity of free space and

is the retarded time.

(1)
in cgs,where q is the charge, a(t) is the acceleration, and c is the speed of light. In MKS,

(2)
where


(3)
is the retarded time.
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