Calculate the current required to produce a flux of 1.75 mwb in the ring, if the relative permeability of the iron is 900. No.of turns N = 600, and radius of the cross-section r = 3.5 cm.

Calculate the current required to produce a flux of 1.75 mwb in the ri

1.	Calculate the current required to produce a flux of 1.75 mwb in the ring, if the relative permeability of the iron is 900. No.of turns N = 600, and radius of the cross-section r = 3.5 cm.
A.	0.15A
B.	0.35 A
C.	0.5 A
D.	0.10 A
Answer» B. 0.35 A

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Calculate the current required to produce a flux of 1.75 mwb in the ring, if the relative permeability of the iron is 900. No.of turns N = 600, and radius of the cross-section r = 3.5 cm.

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