Question

Two similar coils are kept mutually perpendicular such that the centres coincide. At the centre, the ratio of the magnetic field
due to one coil to the resultant magnetic field by both coils, when same current is flown is​

Answer 1

Explanation:

magenetic force was being applird

Answer 2

ANSWER:

The ratio of the magnetic field due to one coil to the "resultant magnetic field" by both coils, when "same current is flown" is​ $x / \sqrt{2}=\frac{1}{\sqrt{2}}$.

EXPLANATION:

Let the magnetic field due to one coil at the center be x.

    Then the resultant magnetic field when two coils are placed perpendicular to each other is the vector sum of the fields due to both the coils.

    The individual magnetics fields are perpendicular to one another so their resultant will be  So the resultant magnetic field will be $\sqrt{2}$. Hence the ratio of fields will be $x / \sqrt{2}=\frac{1}{\sqrt{2}}$.