The Magnetic Field Due to the Current in a Long,straight

question 84

Multiple Choice

The magnetic field due to the current in a long,straight wire is 8.0 μT at a distance of 4.0 cm from the center of the wire.What is the current in the wire? (μ₀ = 4π × 10^-7 T ∙ m/A)

• A)0.20 A
• B)0.40 A
• C)0.80 A
• D)3.2 A
• E)1.6 A

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