Three capacitors each of capacitance $9 ext{ pF}$ are connected in series. What is the total capaci

Question

Three capacitors each of capacitance $9	ext{ pF}$ are connected in series. What is the total capacitance of the combination?

Professor PC Thomas Classes · Answer

For capacitors in series, $\frac{1}{C_{eq}} = \frac{1}{C_1} + \frac{1}{C_2} + \frac{1}{C_3} = \frac{1}{9} + \frac{1}{9} + \frac{1}{9} = \frac{3}{9} = \frac{1}{3}$. Therefore, $C_{eq} = 3	ext{ pF}$.