question_answer

In the following circuit the equivalent resistance between A and B is

A) \[\frac{20}{3}\,\Omega \]           

B)   \[10\,\,\Omega \]

C) \[16\,\,\Omega \]                        

D) \[20\,\,\Omega \]

Correct Answer: C

Solution :

According to the given figure A is at lower potential w.r.t. B. Hence both diodes are in reverse biasing, so equivalent, circuit can be redrawn as follows. \[\Rightarrow \] Equivalent resistance between A and B \[R=8+2+6=16\,\Omega \]