Two concentric coils each of radius equal to 2π 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/m² at their common centre is
$\left.\left({\mathrm{\mu }}_0=4\mathrm{\pi }\times {10}^{-7}\mathrm{wb}/\mathrm{A}-\mathrm{m}\right)\right)$