A Straight Wire of Length 3 $\circ$ with the Magnetic Field Lines

question 27

Multiple Choice

A straight wire of length 3.5 m carries a current and it is placed on a horizontal table in a horizontal uniform magnetic field of 0.14 T.The wire makes an angle of 44 ^$\circ$ with the magnetic field lines.If the magnitude of the magnetic force on the wire is 9.0 N,what is the current in the wire?

• A)36 A
• B)42 A
• C)48 A
• D)67 A
• E)26 A

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