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a) At a certain location, the Earth has a magnetic field of 2.2 × 10-5 T pointing in the northward direction at 36 ? below the horizontal (in a north-south plane). A 12 m-long straight wire carries a(n) 22 A current. If the current is directed horizontally toward the east, what is the magnitude of the magnetic force on the wire? Answer in units of N.

b) If the current is directed vertically upward, what is the magnitude of the magnetic force on the wire? Answer in units of N.

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