question_answer

Calculate the equivalent resistance between A and B [UPSEAT 2001]

A)         \[\frac{9}{2}\Omega \]

B)         3 W

C)         6 W

D)         \[\frac{5}{3}\Omega \]

Correct Answer: A

Solution :

                                         No current flow through vertical resistances \[{{R}_{AB}}=\frac{9}{2}\Omega \].