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anonymous
 one year ago
A wire carries a current of 5.2 A from east to west through a 6.0 m section of wire in the earth's magnetic field of 1 × 10^5 T at a location where the magnetic field points south. What is the magnitude of the magnetic force acting on the wire?
A. 3.1 × 10^4 N
B. 3.1 N
C. 5.2 × 10^5 N
D. 6.0 × 10^5 N
anonymous
 one year ago
A wire carries a current of 5.2 A from east to west through a 6.0 m section of wire in the earth's magnetic field of 1 × 10^5 T at a location where the magnetic field points south. What is the magnitude of the magnetic force acting on the wire? A. 3.1 × 10^4 N B. 3.1 N C. 5.2 × 10^5 N D. 6.0 × 10^5 N

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Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1it is simple, since we have to apply this formula: \[\Large {\mathbf{F}} = I\;{\mathbf{l}} \times {\mathbf{B}}\] which can be rewritten as follows, since current and field are mutually perpendicular: \[\Large {\mathbf{F}} = I\;{\mathbf{l}} \times {\mathbf{B}} = IlB = 5.2 \times 6 \times {10^{  5}} = ...Newtons\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0we get 3.12E4? choice A is our solution?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yay! thanks!!:) onto the next!:D
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