Q 12-02-039JEE MainJEE Main 2026 (4 Apr, Shift 2)Medium
From the circuit given below, the capacitance between terminals $A$ and $B$ shown in the circuit is ______ $\mu$F.
(take $C_1 = C_2 = C_3 = 1\,\mu$F and $C_4 = 2\,\mu$F.)
Answer: (A) $2$
Concept. Identify nodes: the top wire puts the left of $C_1$ and the $C_2$–$C_3$ junction at A.
Step 1. A to Q. $C_1 \parallel C_2 = 2\ \mu$F; Q to B: $C_4 = 2\ \mu$F; series $1\ \mu$F.
Step 2. Parallel with $C_3$. $1 + 1 = 2\ \mu$F.
Answer. $2$ (Option A).
Solution by Sreeraj P, M.Sc Physics
