Question

Find the equivalent resistance across AB.​

Answer 1

Answer:

Answer is 1 ohm.

Equivalent resistance:-

at first add all resistance that are in series and you will can three no. 4, 4 and 2.

Now they all are parallel connection. so add all inversely:-

1/2+1/4+1/4=1 ohm..

Answer 2

Answer:

1 ohm.

Explanation:

the answer is fully explained in the above attached image . (NOTE:Be careful while rearranging the circuits)