Consider a long, straight, thin wire carrying a 350-mA steady current. The value of $\oint \vec { B } \cdot d \vec { s }$ computed around the circle of radius 3.1 cm (from the wire) is
A) $1.6 \times 10 ^ { - 8 }$ T.m.
B) $6.5 \times 10 ^ { - 6 }$ T.m.
C) $7.8 \times 10 ^ { - 6 }$ T.m.
D) $4.4 \times 10 ^ { - 7 }$ T.m.

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The Answer of Consider a long, straight, thin wire carrying a 350-mA steady current. The value of $\oint \vec { B } \cdot d \vec { s }$ computed around the circle of radius 3.1 cm (from the wire) is
A) $1.6 \times 10 ^ { - 8 }$ T.m.
B) $6.5 \times 10 ^ { - 6 }$ T.m.
C) $7.8 \times 10 ^ { - 6 }$ T.m.
D) $4.4 \times 10 ^ { - 7 }$ T.m.

Consider a Long, Straight, Thin Wire Carrying a 350-MA Steady ∮B⃗⋅ds⃗\oint \vec { B } \cdot d \vec { s }∮B⋅ds

Consider a Long, Straight, Thin Wire Carrying a 350-MA Steady $\oint \vec { B } \cdot d \vec { s }$