question_answer

A wire of resistance R is bent to form a square ABCD as shown in the figure. The effective resistance between E and C is:

(E is mid-point of arm CD) [JEE Main 9-4-2019 Morning]

A) \[R\]

B) \[\frac{1}{16}R\]

C) \[\frac{7}{64}R\]

D) \[\frac{3}{4}R\]

Correct Answer: C

Solution :

[c]

Option