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

Label the junctions:

• A = left end
• B = between 1st and 2nd 9Ω
• C = between 2nd and 3rd 9Ω
• D = right end

Now observe the wires:

• Top wire connects A directly to C
• Bottom wire connects B directly to D

So nodes merge:

A ≡ C
B ≡ D

Now check each resistor:

• First 9Ω is between A and B
• Second 9Ω is between B and A (since B ≡ D and A ≡ C)
• Third 9Ω is between A and B

So all three resistors are connected between the same two nodes → all in parallel.

Equivalent resistance:

$$R_{eq}=9∥9∥9=9/3=3Ω$$

Current:

I = V / R = 6 / 3 = 2 A