Magnetics

Two concentric coils each of radius equal to $2$ $\pi$ $cm$ are placed at right angles to each other. $3$ ampere and $4$ ampere are the currents flowing in each coil respectively . The magnetic induction in Weber / ${m^2}$ at the center of the coils will be $\left( {\mu = 4\pi \times {{10}^{ - 7}}Wb/A.m} \right)$