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Electric Current and Magnetism

I need some help with these question:
Two long, straight wires are oriented perpendicular to the computer screen, as shown below, in which L = 4.5 cm. The current in one wire is I1 = 3.1 A, pointing into the screen, and the current in the other wire is I2 = 4.0 A, pointing out of the screen. Find the magnitude and direction of the net magnetic field at point P.
(see attachment for diagram)


Solution Summary

This handwritten solution determines the magnitude and direction of the new magnetic field at point P with step-by-step calculations and explanations.