Two long parallel wires 8.20?cm apart carry 23.2-A currents in the same direction.
https://session.masteringphysics.com/problemAsset/1756618/4/Giancoli7.ch20.92.jpg
Part A
Determine the magnitude of the magnetic field vector at a point P, 12.0?cm from one wire and13.0?cm from the other (Figure 1) . [Hint: Use the law of cosines.]
Express your answer using three significant figures in terms of Tesla.
Part B
Determine the direction of the magnetic field vector at the point P.
Express your answer using three significant figures in terms of degrees.