(c) the potential gradient [10] Question 3 (Electromagnetism) A mild steel ring has a radius of 50 mm and across-sectional area of 400 mm?. A current of 0.5 A flows in a coil wound uniformly around the ring and theflux produced is 0.1 mWb. If the relative permeability at this value of current is 200 find (a) the relu… Show more… Show more Engineering & Technology Electrical Engineering ELECT EEA1501 Share QuestionEmailCopy link Comments (0)