Question: At a certain location in the Philippines, Earth's magnetic field of 39T is horizontal and directed due north. Suppose the net field is zero exactly

At a certain location in the Philippines, Earth's magnetic field of 39μT is horizontal and directed due north. Suppose the net field is zero exactly 8.0 cm above a long, straight, horizontal wire that carries a constant current. What are the

(a) Magnitude and

(b) Direction of the current?

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