Q 12-02-034JEE MainMedium
Find the equivalent capacitance, in $\mu$F, of a $3\ \mu$F capacitor in series with a parallel combination of $2\ \mu$F and $4\ \mu$F.
Numerical value type. Enter your answer.
Answer: 2
Concept. Parallel adds; series combines reciprocally.
Step 1. Parallel. $6\ \mu$F.
Step 2. Series. $\dfrac{3 \times 6}{9} = 2\ \mu$F.
Answer. $2$.
Solution by Sreeraj P, M.Sc Physics