Two coaxial circular coils of radius R = 15 cm,each carrying 4.0 A in the same direction,are positioned a distance d = 20 cm apart,as shown in the figure.Calculate the magnitude of the magnetic field halfway between the coils along the line connecting their centers. (μ0 = 4π × 10-7 T ∙ m/A)
A) 0.90 × T
B) 3.9 × T
C) 1.9 × T
D) 6.3 × T
E) 9.2 × T
Correct Answer:
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