What is the magnetic field at the center of a circular loop of wire of radius 4.0 cm when a current of 2.0 A flows in the wire?
A) 1.3 × 10-6 T
B) 3.1 × 10-6 T
C) 1.3 × 10-5 T
D) 3.1 × 10-5 T
E) 0 T
D
Physics & Space Science
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