An infinitely long wire carrying a 50-A current in the positive x-direction is placed alon...

An infinitely long wire carrying a 50-A current in the positive x-direction is placed along the x-axis in the vicinity of a 10-turn circular loop located in the x-y plane as shown in Fig. 1. If the magnetic field at the center of the loop is zero, what is the direction and magnitude of the current flowing in the loop?

Figure 1

Circular loop next to a linear current.