A Horizontal Wire of Length 3

question 71

Multiple Choice

A horizontal wire of length 3.6 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 size of the force on the wire?

• A) 1.6 * 10^-4 N
• B) 0.28 *10^-4 N
• C) 1.9 * 10^-4 N
• D) 2.5 *10^-4 N

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