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Field of a Long Wire: a Very Long Thin Wire

Question 46

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Field of a long wire: A very long thin wire produces a magnetic field of Field of a long wire: A very long thin wire produces a magnetic field of at a distance of from the central axis of the wire. What is the magnitude of the current in the wire? (μ<sub>0</sub> = 4π × 10<sup>-7</sup> T ∙ m/A) A) 7.5 mA B) 1.7 mA C) 3300 mA D) 24,000 mA at a distance of Field of a long wire: A very long thin wire produces a magnetic field of at a distance of from the central axis of the wire. What is the magnitude of the current in the wire? (μ<sub>0</sub> = 4π × 10<sup>-7</sup> T ∙ m/A) A) 7.5 mA B) 1.7 mA C) 3300 mA D) 24,000 mA from the central axis of the wire. What is the magnitude of the current in the wire? (μ0 = 4π × 10-7 T ∙ m/A)


A) 7.5 mA
B) 1.7 mA
C) 3300 mA
D) 24,000 mA

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