Two identical short bar magnets, each having magnetic moment of `10Am^(2)`, are arranged such that their axial lines are perpendicular to each other and their centres be along the same straigh line in a horizonetal plane. If the distance between their centres is `0.2m`, the resultant magnetic induction at a point midway between them is
`(mu_(0)=4pixx10^(-7)Hm^(-1))`