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| Problem 7: A power line carries a DC current of I = 25 A in a direction o = 27° east of magnetic north through an open field, in a location where the Earth's magnetic field is horizontal and its strength is B = 0.55 G. Part (a) Calculate the magnitude of the magnetic force per unit length, F/l, in newtons per meter, exerted on the wire due to the Earth’s magnetic field. F/l = | N/m

| Problem 7: A power line carries a DC current of I = 25 A in a direction o = 27° east of magnetic north through an open field, in a location where the Earth's magnetic field is horizontal and its strength is B = 0.55 G. Part (a) Calculate the magnitude of the magnetic force per unit length, F/l, in newtons per meter, exerted on the wire due to the Earth’s magnetic field. F/l = | N/m

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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May I get help with this please? It's one question, just multiple parts (A through F). Thanks!!

Problem 7: A power line carries a DC current of I = 25 A in a direction o = 27° east of magnetic north through an open field, in a location where the Earth's magnetic field is horizontal and its strength is B = 0.55 G. Part (a) Calculate the magnitude of the magnetic force per unit length, F/l, in newtons per meter, exerted on the wire due to the Earth's magnetic field. F/l = N/m (O 7 E ^ A 4 5 sin() cos() tan() 8. JT НОME cotan() asin() acos() 6. atan() acotan() sinh() 1 2 3 cosh() tanh() cotanh() + END O Degrees Radians VO BАСKSРАСЕ DEL CLEAR Submit Hint Feedback I give up! Part (b) In what direction does the force on the wire act? Part (c) You decide to re-orient the wire to minimize the magnetic force acting on the wire. In what direction(s) could the current flow? Part (d) In what direction(s) could you orient the current flow to maximize the magnetic force acting on the wire? Part (e) In which of the directions that correctly answer part (d) is the magnetic force on the wire up? Part (f) If the wire is oriented so that the current flows in the direction you chose for part (e), what would the mass per unit length of the wire, u, in grams per meter, need to be for the magnetic force to balance the weight of the wire?
Transcribed Image Text:Problem 7: A power line carries a DC current of I = 25 A in a direction o = 27° east of magnetic north through an open field, in a location where the Earth's magnetic field is horizontal and its strength is B = 0.55 G. Part (a) Calculate the magnitude of the magnetic force per unit length, F/l, in newtons per meter, exerted on the wire due to the Earth's magnetic field. F/l = N/m (O 7 E ^ A 4 5 sin() cos() tan() 8. JT НОME cotan() asin() acos() 6. atan() acotan() sinh() 1 2 3 cosh() tanh() cotanh() + END O Degrees Radians VO BАСKSРАСЕ DEL CLEAR Submit Hint Feedback I give up! Part (b) In what direction does the force on the wire act? Part (c) You decide to re-orient the wire to minimize the magnetic force acting on the wire. In what direction(s) could the current flow? Part (d) In what direction(s) could you orient the current flow to maximize the magnetic force acting on the wire? Part (e) In which of the directions that correctly answer part (d) is the magnetic force on the wire up? Part (f) If the wire is oriented so that the current flows in the direction you chose for part (e), what would the mass per unit length of the wire, u, in grams per meter, need to be for the magnetic force to balance the weight of the wire?
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