A single current-carrying circular loop of radius R is placed next to a long, straight wire, as shown in the figure. The current I in the wire flows to the right. In which direction must current flow in the loop to produce a net magnetic field of zero at its center? 
Definitions:
Benchmarking
The practice of comparing business processes and performance metrics to industry bests and best practices from other companies.
Patient Handoff Quality
Refers to the effectiveness, safety, and efficiency of transferring patient care information and responsibility from one healthcare provider to another.
Ferrari Racing
The division of the Ferrari automotive brand dedicated to motorsport, participating in Formula One and other racing competitions.
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