Charged-particle circular radius
A charged particle in a parallel-plate field setup has mass \(0.003\,\text{kg}\), speed \(45\,\text{m s}^{-1}\), charge \(0.007\,\text{C}\), and enters a \(0.55\,\text{T}\) magnetic field at right angles. Calculate the path radius. Enter the numerical result and choose the interpretation that matches the physics meaning.
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