(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Calculate magnetic field intensity in point P using Biot-Savart's law. How should the supplying wires be arranged so that they would not influence field in P point? a=0.2m,i=10A

2. Relevant equations

Biot Savart's law

3. The attempt at a solution

In the attachment.

The tutor graded my work for only 3 (that is C), whereas I don't quite understand why. Could anyone tell me what was wrong with my solution?

Thanks in advance!

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# Biot Savart's Law

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