A Horizontal Wire of Length 3

question 79

Multiple Choice

A horizontal wire of length 3.0 m carries a current of 6.0 A and is oriented so that the current direction is 50° 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 direction of the force on the wire?

• A)out of the Earth's surface
• B)toward the Earth's surface
• C)due east
• D)40° S of E

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