(True/False) 1. A long straight wire parallel to the y axis carries acurrent of

Question

(True/False) 1. A long straight wire parallel to the y axis carries acurrent of 6.3 A in the positive y direction. There is a uniformmagnetic field of 1.5 T in the positive x direction. The force perunit length on the wire is approximately 9.5 N/m and is in thepositive z direction. 2. A long wire carries a current toward the north in amagnetic field that is directed vertically downward. The directionof the magnetic force on the wire is toward the west. 3. A long straight wire parallel to the y axis carries acurrent of 6.3 A in the positive y direction. There is a uniformmagnetic field of 1.5 T in the positive x direction. The force perunit length on the wire is approximately 9.5 N/m and is in thenegative z direction 4. The figure shows the motion of electrons in a wirewhich is near the North pole of a magnet. The wire will be pushedaway from the magnet. 5. A long wire carries a current toward the east in amagnetic field that is directed due south. The direction of themagnetic force on the wire is vertically downward. (True/False) 1. A long straight wire parallel to the y axis carries acurrent of 6.3 A in the positive y direction. There is a uniformmagnetic field of 1.5 T in the positive x direction. The force perunit length on the wire is approximately 9.5 N/m and is in thepositive z direction. 2. A long wire carries a current toward the north in amagnetic field that is directed vertically downward. The directionof the magnetic force on the wire is toward the west. 3. A long straight wire parallel to the y axis carries acurrent of 6.3 A in the positive y direction. There is a uniformmagnetic field of 1.5 T in the positive x direction. The force perunit length on the wire is approximately 9.5 N/m and is in thenegative z direction 4. The figure shows the motion of electrons in a wirewhich is near the North pole of a magnet. The wire will be pushedaway from the magnet. 5. A long wire carries a current toward the east in amagnetic field that is directed due south. The direction of themagnetic force on the wire is vertically downward.

Explanation / Answer

1. A long straight wire parallel to the y axis carries acurrent of 6.3 A in the positive y direction. There is a uniformmagnetic field of 1.5 T in the positive x direction. The force perunit length on the wire is approximately 9.5 N/m and is in thepositive zdirection.          FALSE (it would be inneg z direction) 2. A long wire carries a current toward the north in amagnetic field that is directed vertically downward. The directionof the magnetic force on the wire is toward thewest.      TRUE 3. A long straight wire parallel to the y axis carries acurrent of 6.3 A in the positive y direction. There is a uniformmagnetic field of 1.5 T in the positive x direction. The force perunit length on the wire is approximately 9.5 N/m and is in thenegative zdirection           TRUE 4. The figure shows the motion of electrons in a wirewhich is near the North pole of a magnet. The wire will be pushedaway from the magnet.   TRUE    although thisquestion is worded poorly... the direction of the force would beupward, which is "away from the magnet" because it is not towardthe magnet. They should be more specific withdirections. 5. A long wire carries a current toward the east in amagnetic field that is directed due south. The direction of themagnetic force on the wire is verticallydownward.      TRUE

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