The Magnetic Field at Point P Due to a 2 $8.0 \mu T$

question 2

Multiple Choice

The magnetic field at point P due to a 2.0-A current flowing in a long, straight, thin wire is $8.0 \mu T$ . How far is point $P$ from the wire? $\left( \mu _ { 0 } = 4 \pi \times 10 ^ { - 7 } \mathrm {~T} \cdot \mathrm { m } / \mathrm { A } \right)$

• A) \(4.0 \mathrm {~cm}\)
• B) \(10 \mathrm {~cm}\)
• C) \(2.0 \mathrm {~cm}\)
• D) \(5.0 \mathrm {~cm}\)
• E) \(2.5 \mathrm {~cm}\)

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