Science, asked by swara6967, 5 hours ago

At what temperature do we get Hc- 0.1Hc(0) for lead (Pb) having Tc-7.2 K?​

Answers

Answered by 303787
0

Answer:

Explanation:

Given data:

Transition temperature = 7.2 K

Magnetic filed strength = 3.3 x 10^4 A/m

Solution:

The formula is:

Ho = Hc [ 1 - (T / Tc)^2]

Ho = Hc [ 1 - (T / Tc)^2] = 3.3 x 10^4 x [1 - 25 / 51.28]

Ho =  3.3 x 10^4 x [1 - 0.487]

Ho =  3.3 x 10^4 x 0.613

Ho = 6.37 x 10^4 A/m

Hence the maximum value of H is Ho = 6.37 x 10^4 A/m

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