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a long straight wire along the z axis carries a current i in the negative z direction . the magnetic vector field b at a point having co ordinate(x,y) on the z=0 plane is ???

Asked by 22nd July 2012, 1:50 AM
Answered by Expert
The magnetic field at a point on a plane z=0, perpendicular to the wire at a point A(x,y) is given as:
Its direction is perpendicular to the direction of current and its direction is determined by right and thumb rule
Answered by Expert 22nd July 2012, 11:41 PM
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