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A wire having a linear mass density of 1.04 g/cm is placed on a horizontal surface...

A wire having a linear mass density of 1.04 g/cm is placed on a horizontal surface that has a coefficient of kinetic friction of 0.200. The wire carries a current of 1.53 A toward the east and slides horizontally to the north at constant velocity.

(a) What is the magnitude of the smallest magnetic field that enables the wire to move in this fashion?
T

(b) What is direction of the smallest magnetic field that enables the wire to move in this fashion?
° below the horizontal

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