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unscientific
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Homework Statement
A z-polarized incident EM waves hits a small charge (-q) bounded to a massive charge (+q) with spring constant k0 and frequency ω.
(a) Write down the equation of motion
(b)Find time averaged total power dissipated.
(c) Find classical scattering cross section σ (thomson)
(d) Find value of E0 that makes magnetic forces non-negligible.
The Attempt at a Solution
Part (a) and (b)
Part(c)
Part (d)
Because velocity of particle is slow, so magnetic force on it is low, giving it a small magnetic displacement compared to the electric displacement.
I related equated magnetic displacement to electric displacement to find a value of E0.