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A long straight wire X carries 3 A current horizontally to the right. Another long straight...

A long straight wire X carries 3 A current horizontally to the right. Another long straight wire Y, which is 20 cm below wire X, carries 2 A current also horizontally to the right. (a) Calculate the magnitude of the magnetic field midway between the two wires. (b) Calculate the magnitude of the magnetic field at a point 10 cm below wire Y.

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