28. Magnetic Fields and Forces
Magnets and Magnetic Fields
Multiple Choice
Multiple ChoiceA wire carries a positive current to the left in the plane of this screen. What is the direction of the magnetic field at a point near the top of the screen, still in the plane of the screen?
A
Upward toward the top of the screen.
B
Downward toward the bottom of the screen.
C
Out of the plane of the screen.
D
To the left.
E
To the right.
F
Into the plane of the screen.
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