Please hel with Mastering Physics, very lost in magnetism

AI Thread Summary
The discussion revolves around finding the point on the x-axis where the magnetic field is zero due to two parallel wires carrying currents. For the scenario where both currents are in the same direction, the magnetic fields created by each wire will combine, affecting the point of zero magnetic field. Conversely, when the currents are in opposite directions, the magnetic fields will oppose each other, leading to a different point of zero magnetic field. The original poster initially expressed confusion but later indicated they solved the problem. The discussion highlights the importance of understanding magnetic field interactions between parallel currents.
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Homework Statement


A long wire carrying a 6.0A current perpendicular to the xy-plane intersects the x-axis at x=−2.0cm. A second, parallel wire carrying a 3.5Acurrent intersects the x-axis atx=+2.0cm.

At what point on the x-axis is the magnetic field zero if the two currents are in the same direction?
Express your answer using two significant figures.

At what point on the x-axis is the magnetic field zero if the two currents are in opposite directions?

I am not sure how to get started

Homework Equations

The Attempt at a Solution

 
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nvr mind i solved it :)
 

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