Two identical metal plates fall through the same localized magnetic-field region. One is solid and the other has many narrow longitudinal slots. Which plate experiences stronger magnetic braking?
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Question

Two identical metal plates fall through the same localized magnetic-field region. One is solid and the other has many narrow longitudinal slots. Which plate experiences stronger magnetic braking?

G1 Physics · Accepted Answer

Slots increase resistance and interrupt large eddy-current loops, so the slotted plate experiences weaker eddy-current braking.