Asolenoid has 332 turns and a length of 14 cm. if a current of 0.88 a produces a magnetic flux density of 0.28 t in the core of the solenoid, what is the relative permeability of the core material?

106.83

Explanation:

N = 332, l = 14 cm = 0.14 m, i = 0.88 A, B = 0.28 T

Let ur be the relative permeability

B = u0 x ur x n x i

0.28 = 4 x 3.14 x 10^-7 x ur x 332 x 0.88 / 0.14       ( n = N / l)

ur = 106.83

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