Question

3. Six equal resistances, each
4ohm, make the arms of the
given Fig. the effective re-
sistance between any two
corners is
1) 10ohm
2) 2/3ohm
3) 4ohm
4) 2ohm
​

Answer 1

This is Wheatstone Bridge's Condition .

So the Answer is 3) 4 Ohm.

Hope this helps:)