What is the direction of the magnetic field at point P?

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SUMMARY

The direction of the magnetic field at point P, located 0.040 m from a long, straight wire carrying a current of 5.0 A, is definitively out of the plane of the page. This conclusion is derived from the application of the right-hand rule, which indicates that the magnetic field circulates around the wire in a counterclockwise direction when viewed from the perspective of the current. The confusion regarding the use of Ampere's law highlights the need for a clear understanding of magnetic field directionality in relation to current flow.

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1. A long, straight wire is carrying a current of 5.0 A in the direction shown in the
figure. The point P is 0.040 m from the wire.
2ak9pud.jpg






What is the direction of the magnetic field at point P due to the current in the wire?

Answer: out of the plane of the page



I can only see that the current is to the left. I don't understand how to figure out the direction of the magnetic force. :(
 
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