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A Long Solenoid with 20 Turns Per Centimeter Has a Core

Question 39

Multiple Choice

A long solenoid with 20 turns per centimeter has a core of iron-silicon.When the current is 1.50 A,the magnetic field inside the core is 4.50 T.The relative permeability Km is approximately


A) 1800
B) 1310
C) 980
D) 556
E) 1190

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