Q.
The effective resistance across the points $A$ and $I$ is
A) $2\ \Omega$
B) $1\ \Omega$
C) $0.5\ \Omega$
D) $5\ \Omega$
Explanation
(b) The given circuit is
[image:3_image136.emf]
$\frac{1}{Req.} = \frac{1}{4} + \frac{1}{2} + \frac{1}{4} \Rightarrow \frac{1}{Req.} = \frac{4}{4} \Rightarrow Req. = 1\Omega$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.