Q 12-03-083JEE MainJEE Main 2024 (5 Apr, Shift 2)Easy
A wire of resistance $20\ \Omega$ is divided into 10 equal parts. Pairs of these parts are connected in parallel, and the resulting parallel pairs are then connected in series. The equivalent resistance of the final combination is ______ $\Omega$.
Numerical value type. Enter your answer.
Answer: 5
Each part: $2\ \Omega$. Each parallel pair: $1\ \Omega$. Five pairs in series: $5\ \Omega$.
Solution by Sreeraj P, M.Sc Physics