Calculate the critical field for a wire of lead at 4.2K. The transition temperature for lead is 7.18K & H(o) at absolute zero is 6.5X10^4 A/m
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magnetic material has a magnetization of 2300 A m–1 and ... 4.2 K. The critical temperature for lead is 7.18 K and H = 6.5 × 104 A m–1. ... The critical magnetic field is 7.9 × 103 Amp m–1.
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magnetic material has a magnetization of2300Am^-1and 4.2k.the critical temperature for lead is 7.18k and H=6.5×10^4Am^-1.The critical magnetic field is7.8×10^3Ampm-1
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