Is any type of electric field produced when (a) a wire having zero surplus charge carries a

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Is any type of electric field produced when (a) a wire having zero surplus charge carries a constant current, (b) a wire having zero surplus charge carries a timevarying current, (c) a bar magnet moves translationally at constant velocity, \((d)\) a bar magnet rotates about an axis that passes symmetrically through its poles?

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