What is the direction of the magnetic field at the middle


1.) 2 long wires are perpendicular to the paper and carry currents in opposite directions (One towards the paper and one away from the paper. What is the direction of the magnetic field at the middle point between two long wires?

2.) If a 3.0 V potential difference causes a 0.50 A current to flow through a resistor, its resistance is:

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