The point P lies along the perpendicular bisector of the line connecting two long straight wires S and T perpendicular to the page. A set of directions A through H is shown next to the diagram. When the two equal currents in the wires are directed up out of the page, the direction of the magnetic field at P is closest to the direction of
A. E.
B. F.
C. G.
D. H.
E. A.
Answer: A
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Refer to the diagram of Racetrack X. 
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How do bipolar jets relate to lobe radio galaxies?
What will be an ideal response?