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How much magnetic field is required to produce eddy currents in Aluminium?
Wiki User
∙ 11y ago
Not an answerable question because you've specified none of the variables such as rate of change of magnetic flux, flux density, distance, current etc.
There probably are formulae that allow you to calculate the eddy currents for given conditions, but I've not encountered them.
However it doesn't take much to induce at least very small currents, for that is the principle of the magnetic coupling in a speedometer.
Wiki User
∙ 11y ago
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