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anonymous
 one year ago
A 6.0 m section of wire carries a current of 5.2 A from east to west in the earth's magnetic field of 1.0 × 10^5 T at a location where the magnetic field points south. In which direction does the magnetic force act on the wire?
north, south, up, or down
?
anonymous
 one year ago
A 6.0 m section of wire carries a current of 5.2 A from east to west in the earth's magnetic field of 1.0 × 10^5 T at a location where the magnetic field points south. In which direction does the magnetic force act on the wire? north, south, up, or down ?

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Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1dw:1434314594879:dw

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1we have to compute the magnitude of the magnetic field due to the wire

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how can we do that? what does it mean?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1since we have to do a vector sum between the magnetic field of the wire and the earth's magnetic field

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohh so it is moving south?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1please sorry, it is not necessary to compute the magnetic field due to the wire

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so what does that mean? south is our solution?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1the answer is up, since the magnetic forc acting on that wire is given by the subsequent formula: \[{\mathbf{F}} = I\;{\mathbf{l}} \times {\mathbf{B}}\] where x stands for vector product. So the direction of the force is up with respect to the plane of the drawing

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohhh okay! :O thank you!! that makes sense:)

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1dw:1434315132306:dw
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