Solving a Biot-Savart Problem: Idx, r and dB

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The discussion revolves around a Biot-Savart problem involving a current element represented as Idx(ax+ay) A at point P(1,-2,2) and the need to find the magnetic flux density at point P(2,-1,3). Participants express confusion about the meaning of Idx and whether it should be treated as Idl for calculating the cross product with the vector r. There is uncertainty regarding the type of current element involved, with suggestions that it could be an infinite wire or a point source. The necessity of integration to determine the magnetic field B is also questioned. Clarification on these points is essential for solving the problem effectively.
ermines
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i personally think that this is just a very simple problem since the problem only requires plugging the right values into the formula. I'm just having trouble with one minor detail.

Homework Statement



For the current element Idx(ax+ay) A situated at P(1,-2,2), find the magnetic flux densities at P(2,-1,3).

Homework Equations



Biot-Savart

dB = (K)(IdI x r)/rr

The Attempt at a Solution



my only problem in here is that I'm having a hard time figuring out what idx is? do i just substitute it for Idl then just get its cross product with r and so on? also, do i need to actually integrate it to get B?

that is all and thanks.
 
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What is Idx(ax+ay) ?
What kind of current element do we have here ? Wire, infinite wire, semi infinite wire ?

marlon
 
hmmm...never thought of that question, marlon...

i suppose that it is an infinite wire? or can't it just be just a point with such property? will it actually make a difference?
 

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