Question

9.
Find equivalent resistance (in ohm) between A and B in ​

Answer 1

Answer:

(b)  answer is 5 ohm

Explanation:

Flow of current is shown highlighted

in figure current through 10 ohm is 0 because the circuit is short before that point so          6 is // with 3 ohm  their net is  6x3/6+3 = 2ohm

and circular 40 ohm is also short because wheat stone condition is applied there R1/R2 = R3/R4      then 10 and 20 are in series and 15 and 30 also in series

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