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a. Determine the magnitude of the magnetic field midway between two long straight wires 2.70 cm apart when one wire carries 4.90 A and the

a. Determine the magnitude of the magnetic field midway between two long straight wires 2.70 cm apart when one wire carries 4.90 A and the other carries 14.2 A. Assume these currents are in the same direction.

b. Determine the magnitude of the magnetic field when these currents are in opposite directions.

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