The Magnetic Field Due to the Current in a Long

question 30

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?

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

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