The current I flowing through the given circuit will be _____ A .

Here all resistors are in parallel, so the equivalent circuit can be redrawn as shown below.

As identical resistances are in parallel, so equivalent resistance is $R=\frac{9}{3}=3 \mathrm{\Omega }$

Now, current through circuit is $I=\frac{6}{3}=2 \mathrm{A}$