Four very long, current -carrying wires in the same plane intersect to form a sq

Question

Four very long, current -carrying wires in the same plane intersect to form a square with side lenghts 32.0 cm, as shown in the figure

A) find the magnitude of the current I so that the magnetic field at the center of the UPPER square is zero.

B) find the direction of the current I so that the magnetic field at the center of the UPPER square is zero.

Four very long, current -carrying wires in the same plane intersect to form a square with side lengths 32.0 cm, as shown in the figure find the magnitude of the current I so that the magnetic field at the center of the UPPER square is zero. find the direction of the current I so that the magnetic field at the center of the UPPER square is zero.

Explanation / Answer

2/9 = 0.222 A upward

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