Question: What is the total capacitance of two capacitors, C1 = 4μF and C2 = 6μF, connected in series?

Options:

1. 2.4μF
2. 10μF
3. 24μF
4. 1.5μF

Correct Answer: 2.4μF

Solution:

For capacitors in series, 1/C_eq = 1/C1 + 1/C2, so 1/C_eq = 1/4 + 1/6 = 5/12, thus C_eq = 2.4μF.