Calculate the relative permeability of the ring

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Reference no: EM131348306

An iron ring of mean length 50 cm and csa 0.8 cm2 is wound with a coil of 350 turns. A current of 0.5 A through the coil produces a flux density of 0.6 T in the ring. Calculate

(a) the relative permeability of the ring,

(b) the inductance of the coil, and

(c) the value of the induced emf if the current decays to 20% of its original value in 0.01 s, when the current is switched off .

Reference no: EM131348306

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