Q. What will be the equivalent resistance between the two points $A$ and $D$
A) $10\ \Omega$
B) $20\ \Omega$
C) $30\ \Omega$
D) $40\ \Omega$
Explanation
(c) Resistances at $C$ and $B$ are not in the circuit. Use laws of resistances in series and parallel excluding the two resistance
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.