Magnetostatics - Determine the magnetic field

AI Thread Summary
To determine the magnetic field at the point (2, 4) due to two perpendicular wires carrying currents of 4A and 6A, it's essential to calculate the magnetic field produced by each wire separately. Use the appropriate equations for the magnetic field around a straight current-carrying wire, then combine the results vectorially, considering the direction of each field. The discussion emphasizes the importance of understanding how to treat each wire independently before summing their contributions. Resources like Hyperphysics are recommended for further clarification on these concepts. Mastering this method is crucial for solving similar magnetostatics problems effectively.
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Two wires carrying currents of 4A and 6A, respectively, are oriented perpendicular to each other and cross without electrical connection at the origin. Determine the magnetic field magnitude and direction at the point (2, 4).

[bI don't even know what equation to use for this. All we have learned is that F=qV x B. That doesn't seem to have much bearing on the problem at hand.[/b]



Don't know where to start...if anyone has a link to something that explains these types of problems that would be highly appreciated. The teacher has been teaching us a chapter of AP Physics a day and I am getting a bit left behind. Thanks.
 
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I'm not understanding how to calculate two wires instead of just one. Should I use the equation that involves two currents or calculate both of the wires and somehow combine them?
 


Treat each wire separately. Find the magnetic field at the point in question from each wire, then add them up to find the total field. (Direction counts--the field is a vector quantity.)
 


Alright, thanks...that clarifies a lot.
 

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