A Long Straight Wire Carrying a 4-A Current Is Placed $x$

question 118

Multiple Choice

A long straight wire carrying a 4-A current is placed along the $x$ -axis as shown in the figure. What is the direction of the magnetic field at a point $P$ due to this wire?

• A) along the \(- x\)-axis
• B) into the plane of the page
• C) out of the plane of the page
• D) along the \(+ x\)-axis
• E) along the \(+ y\)-axis

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