An electricity and magnetism problem by Sargam yadav

Two infinitely long, straight, and thin parallel wires are placed a distance \(d\) apart and carry current \(i\) each. Find the magnetic field at a distance \(d\) from both wires when the direction of current is 1. same and 2. opposite.

Let \(B\) in the first situation be \(B_1\), and \(B_2\) in the second situation. Find \(\dfrac{B_1}{B_2} \).

Give your answer to 2 decimal places.

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