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... the emission of e.m. waves is contradicted by theLudwik continues to inhabit models that are inductanceless and wonders why
common "discharge current" formula:
i=(V/R)*exp(-t/RC) where V is the initial d.o.p.
To show the conflict calculate the amount of heat, H, produced during the
discharge (an integral of i^2*R*dt from zero to infinity); the result is
H=0.5*C*V^2. In other words, FOR ANY FINITE R, the amount of heat is equal
to the initial electrostatic energy. No energy is left for the e.m. waves!
But sparking capacitors do emit waves. This is a reminder that the above
formula is only an approximation; it is not valid for very small RC (fast
discharging).
...
Ludwik Kowalski