A dc power line for a light-rail system carries 1000 A at an angle of 30.0∘ to Earth's 5.0 × 10 −5 T field. What is the force on a 100-m section of this line? 4.30 N 2.50 N 3.00 N 3.30 N
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A dc power line for a light-rail system carries at an angle of to Earth's field. What is the force on a section of this line?