Two short bar magnets of length $1\,\text{cm}$ each have magnetic moments $1.20\,\text{A\,m}^2$ and $1.00\,\text{A\,m}^2$ respectively. They are placed on a horizontal table parallel to each other with their $N$ poles pointing towards the south. They have a common magnetic equator and are separated by a distance of $20.0\,\text{cm}$. The value of the resultant horizontal magnetic induction at the mid-point $O$ of the line joining their centres is close to (Horizontal component of earth's magnetic induction is $3.6 \times 10^{-5}\,\text{Wb\,m}^{-2}$)