question_answer

Find the equivalent resistance between A and B. Each resistor has same resistance R.

A) \[\frac{8}{5}R\]            

B) \[\frac{6}{5}R\]

C) \[\frac{7}{5}R\]            

D) \[\frac{4}{5}R\]

Correct Answer: D

Solution :

[d] The current in \[CO,OE,DO,\] and OF will be same, so these branches will not touch each other at O.