question_answer

A wire has resistance 12\[\Omega \]. It is bent in the form of a circle. The effective resistance between the two points on any diameter of the circle is

A)  12\[\Omega \]                                

B)  24\[\Omega \]

C)  6\[\Omega \]                                   

D)  3\[\Omega \]

Correct Answer: D

Solution :

                  \[{{\operatorname{R}}_{eq}}=\frac{6}{2}3\,\,\Omega \]