Multiple Choice
A long straight wire carrying a 4-A current is placed along the x-axis as shown in the figure.What is the magnitude of the field at a point P,located at y = 2 cm,due to the current in this wire? (μ0 = 4π × 10-7 T ∙ m/A) 
A) 20 μT
B) 30 μT
C) 40 μT
D) 50 μT
E) 60 μT
Correct Answer:

Verified
Correct Answer:
Verified
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