A system of long four parallel conductors whose sections with the plane of the drawing lie at the vertices of a square carry four equal currents. The directions of these currents are as follows: those marked ox point away from the reader, while those marked with a dot point towards the reader. How is the vector of magnetic induction directed at the centre of the square?

A system of long four parallel conductors whose sections with the plan

1.	A system of long four parallel conductors whose sections with the plane of the drawing lie at the vertices of a square carry four equal currents. The directions of these currents are as follows: those marked ox point away from the reader, while those marked with a dot point towards the reader. How is the vector of magnetic induction directed at the centre of the square?
Answer» SOLUTION :In the PLANE of the DRAWING from RIGHT to LEFT.

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