Question

Give the equivalent resistance across the terminals A and B

Answer 1

Answer:

Let us name the resistances as R1, R2, R3 and R4. Now we know that R1 and R3 (each equal to 9 ohm ) are connected in parallel, and so are R2 and R4(each = 3ohm).

So R1 and R2 are in parallel with R3 and R4. So the equivalent resistance between A and B is 6ohm.