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Given:

A copper core with susceptibility <math> \chi_m = -9.7x10^{-6} </math>

length of core L = 1 m

Gap length g = .01 m

cross sectional area A = .1 m

current I = 10A

N = 5 turns



Find: B

Solution:
First we need to find the permeability of copper <math> \mu </math> given by the equation <br> <math> \mu = \mu_0 (1 + \chi_m)

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