Solving a problem in physics section 45 paragraph 90 el

Solving a problem in physics section 45 paragraph 90 el

90. For two infinitely long straight parallel conductors separated by a distance equal to 25 cm, flowing currents of 30 A and 20 in opposite directions. Determine the magnetic induction B at a point remote to r1 = 30 cm from the first and r2 = 40 cm from the second conductor.

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)