For a 7.6 cm (3 inches) diameter bar how much current is needed to mag – McqOptions

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1.	For a 7.6 cm (3 inches) diameter bar how much current is needed to magnetize the bar for the detection of longitudinal discontinuities:
A.	5500 amperes
B.	16500 amperes
C.	1000 amperes
D.	3000 amperes
Answer» E.

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