When the downward current flows in a straight vertical co...
When the downward current flows in a straight vertical conductor, the direction of its magnetic field at a point due north of the wire is?
A.
Upward
B.
North
C.
South
D.
West
Correct answer is D
At a point due N of the wire, the field is due west, at a point due S of the wire, the field is due eest.
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