question_answer

What is equivalent resistance between comers A and B of the triangle shown ? Each resistance has a of value ID.

A) \[\frac{1}{2}\Omega \]  

B) \[1\Omega \]

C) \[\frac{3}{2}\Omega \]                          

D) \[2\Omega \]

Correct Answer: A

Solution :

[a] The upper part of the circuit is a balanced wheatstone bridge, whose effective resistance is \[1\,\,\Omega \]. The resultant \[1\,\,\Omega \]. resistance is parallel to \[1\,\,\Omega \].