Question

A horizontal wire with a mass per unit length of 0.2 kg/m carries a current of 2 A in the +x-direction. If the wire is placed in a uniform magnetic flux density B, what should the direction and minimum magnitude of B be in order to magnetically lift the wire vertically upward? (Hint: The acceleration due to gravity is g= - z9.8 m/s2.)

Answer 1

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