What is the permeability of machine steel? – McqOptions

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1.	What is the permeability of machine steel?
A.	1.1 x 10‚àí4
B.	5.65 x 10‚àí4
C.	6.9 x 10‚àí3
D.	8.8 x 10‚àí3
Answer» C. 6.9 x 10‚àí3

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