The maximum current in a galvanometer can be $10 \mathrm{m}\mathrm{A}$. Its resistance is $10 \mathrm{\Omega }$. To convert it into an ammeter of $1 \mathrm{A}$, the resistance should be connected in parallel with galvanometer is $\frac{n}{99} \mathrm{\Omega }$. Write the value of $n$.