A Horizontal Wire of Length 4

question 31

Multiple Choice

A horizontal wire of length 4.5 m carries a current of 5.8 A and is oriented so that the current direction is 53° S of W.The Earth's magnetic field is due north at this point and has a strength of 0.14 × 10−⁴ T.What is the size of the force on the wire?

• A)2.9E-4 N
• B)3.4E-4 N
• C)1.4E-4 N
• D)2.2E-4 N
• E)7.8E-5 N

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