At Point $P$ The Magnetic Field Due to a Long Straight Wire Carrying

question 14

Multiple Choice

At point $P$ the magnetic field due to a long straight wire carrying a current of $2.0 \mathrm {~A}$ is $1.2 \mu \mathrm { T }$ . How far is $P$ from the wire? $\left( \mu _ { 0 } = 4 \pi \times 10 ^ { - 7 } \mathrm {~T} \cdot \mathrm { m } / \mathrm { A } \right)$

• A) \(22 \mathrm {~cm}\)
• B) \(55 \mathrm {~cm}\)
• C) \(33 \mathrm {~cm}\)
• D) \(11 \mathrm {~cm}\)
• E) \(44 \mathrm {~cm}\)

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