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The B⃗\vec { B } Field at a Distance of 2 Cm from a Long

Question 56

Multiple Choice

The B⃗\vec { B } field at a distance of 2 cm from a long straight current-carrying wire is 4 μT.What is the B⃗\vec { B } field at a distance of 1 cm from this wire?


A) 2 μT
B) 4 μT
C) 6 μT
D) 8 μT
E) 10 μT

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