Q. In the network shown in the figure, each of the resistance is equal to $2\ \Omega.$ The resistance between the points $A$ and $B$ is
A) $1\ \Omega$
B) $4\ \Omega$
C) $3\ \Omega$
D) $2\ \Omega$
Explanation
(d) The equivalent circuits are as shown below
Clearly, the circuit is a balanced Wheatstone bridge. So effective resistance between $A$ and $B$ is $2\Omega$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.