AIIMS 2019 Physics Magnetic Field of Current Loops MCQ Question

The calculation for the magnetic field $B$ at the center $P$ of the square loop is derived using the formula $B = \frac{\mu_0 i}{\pi a}$, where $\mu_0$ is the permeability of free space and $i$ is the current. Substituting the given values, we find $B = 12\sqrt{2} \times 10^{-6} \, \text{T}$, confirming that option A is correct. Other options are not applicable as they do not provide relevant values or calculations related to the problem. Understanding the relationship between current, magnetic field, and geometry is crucial in electromagnetism.